Question

Below are the graphs of y = | x | and y = | x | - 9 . How are the graphs related?


A. The graphs have the same shape. The y-intercept of y = | x | is 0 and the x-intercept of the second graph is –9.

B. The graphs have the same y-intercept. The second graph is steeper than y = | x | .

C. The two graphs are the same.

D. The graphs have the same shape. The y-intercept of y = | x | is 0 and the y-intercept of the second graph is –9.

Answer 1

The answer is D. These two graphs are just both the graphs of the absolute function. The second graph is just transposed 9 units down. In other words, the y intercept (when x = 0) will be -9.

Answer 2

to move the function c units up, add c to the whole funcion

you adde -9 so you moved up -9 units or down 

see each choice
A. xint is where y=0, the xint for this equaion is 9, false
B. false, slopes were not affected
C. false, they clearly changed
D.  yint is where x=0, the yint is -9, true

answer is D