Asked by McKenna Louise
1. The area of a square varies directly as the square of its side. If the side is halved, what would be the effect on its area?
2. If y varies directly as the square of x, what will happen to y when x is tripled?
2. If y varies directly as the square of x, what will happen to y when x is tripled?
Answers
Answered by
Steve
a = ks^2
new area: k(s/2)^2 = ks^2/4 = a/4
y=kx^2
k(3x)^2 = 9kx^2 = 9y
new area: k(s/2)^2 = ks^2/4 = a/4
y=kx^2
k(3x)^2 = 9kx^2 = 9y