Question

When x increases from a to a + 2, y increases by a difference of 8.

Answer 1

Answer:

C) $y=4x+2$

Step-by-step explanation:

let's check all the options:

• A) $y=2(4)x=8x$

if x = a

$y(a)=8a$

and now with x = a + 2

$y(a+2)=8(a+2)=8a+16$

the answer increased by 16. it is not the right option

• B) $y=2(8x)=16x$

if x = a

$y(a)=16a$

and now with x = a + 2

$y(a+2)=16(a+2)=16a+32$

the answer increased by 32. it is not the right option

• C) $y=4x+2$

if x = a

$y=4a+2$

and now with x = a + 2

$y(a+2)=4(a+2)+2=4a+8+2=4a+10$

this time, between $4a+2$ and $4a+10$ there is a difference of 8.

so for this function the statement is true.

Answer 2

Answer:

Step-by-step explanation: the answer is C y= 4x + 2 (usatestprep)