Which table shows a linear function? A: (−3,−6),(0,−4),(3,−2),(6,0); B: (−2,−7),(−1,−5),(0,−3),(2,−1); C: (−6,6),(−2,0),(0,−3),(3,−6); D: (2,0),(4,2),(6,3),(8,5).
Analyze the function f(x)=x−6x+10 by answering these questions: (a) Is (5,17) on f? (b) Find f(3) and its point. (c) Solve f(x)=2 and find points. (d) Determine the domain. (e) List x-intercepts. (f) List the y-intercept.
Solve the equation by factoring. Check your solution. If there are multiple solutions, list the solutions from leas greatest separated by a comma.
x2+4=0□
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spent her afternoon finishing a scarf she is knitting for her friend. The length of scarf Jen had left to finish decreased as she knit.
(b) This situation can be modeled as a linear relationship. Complete the statement that describes the situation. At the start of the afternoon, Jen had 18
□ inches of scarf left to knit. She completed □ inches of the scarf each hour.
Question 10 Solve the problem. A closed box with a square base has to have a volume of 17,000 cubic inches. Find a function for the surface area of the box.
here is a line that includes the point (10,−9) and has a slope of 2 . What is its equation in oint-slope form?
se the specified point in your equation. Write your answer using integers, proper fractions nd improper fractions. Simplify all fractions.
y - □=□ ( x - □ )
□
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There is a line that includes the point (4,3) and has a slope of 41. What is its equation in point-slope form? Use the specified point in your equation. Write your answer using integers, proper fractions, and improper fractions. Simplify all fractions.
y−□=□)
6. A student forgets to turn off a 6.00×102W block heater of a car when the weather turns warm. If 14 h goes by before he shuts it off, how much energy is used by the heater? (Hint....think back to unit 3 energy formulas).
(you answer)
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Penalty: 0.25 off
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Find the slope of a line perpendicular to the line whose equation is 9x−3y=81. Fully simplify your answer.
Answer Attempt 1 out of 2
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12. Le réservoir d'essence de la voiture de Léonie peut contenir 50 L . Lorsqu'elle roule sur l'autoroute, sa voiture consomme 10 L par 100 km . En ville, elle consomme 12 L par 100 km . Léonie a fait le plein dimanche. Depuis, elle a parcouru 120 km en ville et 150 km sur l'autoroute. Quelle distance peut-elle encore parcourir sur l'autoroute sans faire le plein? Réponse : km sur l'autoroute.
Write an equation to describe the sequence below. Use n to represent the position of a term in the sequence, where n=1 for the first term.
34,−102,306,… Write your answer using decimals and integers.
an=□(□)n−1
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nome Modules
Grades
Syllabus
Lucid (Whiteboard)
Meazure Learning LTI
a) (f+g)(x)
b) (f−g)(x)
c) (f⋅g)(x) In the box below, enter Yes once you have completed your work on your paper that you will submit at the end of the test.
2. Function P represents the perimeter, in inches, of a square with side length x inches.
a. Complete the table.
\begin{tabular}{|c|llllllll}
\hlinex \\
\hlineP(x) & 0 & 1 & 2 & 3 & 4 & 5 & 6 \\
\hline
\end{tabular}
b. Write an equation to represent function P.
c. Sketch a graph of function P.
1.4 Graphs of Linear Equations Use the given conditions to write an equation for the line in slope-intercept form.
5) Passing through (−2,−7) and (−8,−6)
For problems 1−6 solve the equations. Write the solution set with the exact values given in terms of common or natural logarithms. Also give approximate solutions to 4 decimal places
1) 2z=70
2) e3x+1−200=240
3) 105+8x+4200=84000
4) 80=320e−0.5t
5) 5x+1=75
6) 111−8x=92x+3
A sales tax of 6% is added to the price of an item. If Marisa buys an item, which expression indicates how much she will pay in all?
(A) n+0.06
(B) 0.06n
(C) n+0.06n
(D) 0.06+0.06n
Write a function g whose graph represents the indicated transformation of the graph of f. 1. f(x)=2x+4; translation 7 units left
a. g(x)=−2x+11
C. g(x)=2x+18
b. g(x)=−2x+18
d. g(x)=2x+11
Question 7: Let {u1,u2,u3} be an orthonormal basis for a three-dimensional subspace S of an inner product space V, and let
x=2u1−u2+u3 and y=u1+u2−4u3.
a) Determine the value of ⟨x,y⟩.
b) Determine the value of ∥x∥.
Estelle deposited \$5,000 in a savings account with simple interest. One year later, the account held \$5,300. What was the interest rate? Use the formula i=prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
□ \%
Use transformations to graph the function. Determine the domain, range, horizontal asymptote, and y-intercept of the function
f(x)=2−x−5 Use the graphing tool to graph the function. Click to
enlarge graph
(For any answer boxes shown with the grapher, type an exact answer.)
This quiz: 10 point(s) possible
This question: 1 point(s) possible Suppose that the manufacturer of a gas clothes dryer has found that when the unit price is p dollars, the revenue R (in dollars) is R(p)=−2p2+2,000p.
(a) At what prices p is revenue zero?
(b) For what range of prices will revenue exceed $400,000 ?
(a) At what prices p is revenue zero? The revenue equals zero when p is $□
(Use a comma to separate answers, but do not use commas in any individual numbers.)
(b) For what range of prices will revenue exceed $400,000 ?
□
(Type your answer i
24 Suppose that the quantity supplied S and quantity demanded D of T-shirts at a concert are given by the following functions where p is the price.
S(p)=−250+60pD(p)=1100−75p Answer parts (a) through (c).
(a) Find the equilibrium price for the T-shirts at this concert. The equilibrium price is $□ (Round to the nearest dollar as needed.) What is the equilibrium quantity?
The equilibrium quantity is □ T-shirts.
(Type a whole number.)
(b) Determine the prices for which quantity demanded is greater than quantity supplied. For the price $□p□$ \\square,thequantitydemandedisgreaterthanquantitysupplied.(c)WhatwilleventuallyhappentothepriceoftheT$-shirts if the quantity demanded is greater than the quantity supplied?
Find all rational zeros of f. Then (if necessary) use the depressed equation to find all roots of the equation f(x)=0.
f(x)=2x3−x2−14x+7 Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The set of all zeros of the given function is □ \}.
(Simplify your answer. Type an exact answer, using radicals as needed. Use a comma to separate answers as n
B. There are no real zeros.
MATh140 Second Firstsem-2024-2025, (161745)(-4)
mentie Question 8 of 18
A matrix that is both sympetric and upper triangular must be a diagonal matrix.
True
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