Math  /  Algebra

Question23. In the figure, the line kx+4y12=0k x+4 y-12=0 cuts the xaxis\mathrm{x}-\mathrm{axis} at A and the yaxis\mathrm{y}-\mathrm{axis} at B . If the area of OAB\triangle \mathrm{OAB} is 6 square units, then k=k= Av) 1 B. 3 C. 5 D. 7

Studdy Solution
Set up an equation for the area and solve for k k .
Given that the area is 6 square units:
18k=6 \frac{18}{k} = 6
Multiply both sides by k k :
18=6k 18 = 6k
Divide both sides by 6:
k=3 k = 3
The value of k k is:
3 \boxed{3}

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