Question

Determine whether the formula describes y as a function of x. Explain your reasoning.

y = -x

Answer 1

notice how any number you plug in for x, you will always get EXACTLY ONE value for y

Answer 2

because of this, you have a function

Answer 3

if you plugged in say x = 2 and got y = 3 and y = 4 at the same time, then you wouldn't have a function

but that never happens here

Answer 4

thank you so much

Answer 5

yw