Question

given that (-8,-1) is on the graph of f(x) find the corresponding point for the function f(-2/3x)

Answer 1

@dan815 can you help???

Answer 2

okay multiplying x by a numbers will rescale or invert the axis

Answer 3

the negative will make it reflect across the y axis

Answer 4

and the 2/3 will make it 3/2 times bigger, since you would see more values of x to get the same result, there will be a horizontal stretch

Answer 5

so the point becomes
(-8,-1)----> (-8*-3/2,1) = (12,1)

Answer 6

i found but thanks it was -12,1

Answer 7

but i am suck on one again given that (-1,-3) is on the graph of f(x) find the corresponding point for the function -3f(x)

Answer 8

its (12,-1)**