Question

A) -20
b) -8
c) 8
d) 48

Answer 1

-8

Explanation:

This question is asking us what y is equal to when x equals 8. To determine this, we can plug 8 into the equation for x and solve for y. So, let's do just that!

y = 8 - 2x [ Plug in 8 for x ]

y = 8 - 2(8) [ Simplify ]

y = 8 - 16 [ Solve ]

y = -8

So, when x=8, y=-8. Attached is an image of the function graphed that also shows that when x=8, y=-8.

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Answer 2

b. -8

Explanation:

Solution Given:

Equation is:

y=8-2x

if x=8

Substitute value of x in above equation

y=8-2*8

y=8-16

y=-7