How will the graph of line y = -5x + 7 be affected if the 7 is changed to –7? A. The line will be reflected over the x-axis.
B. The line will be reflected over the y-axis.
C. The line will be rotated 90° about the origin.
D. The y-intercept will be moved 7 units downward.

E. The y-intercept will be moved 14 units downward.

Answer is D

the reason it's because you only changed the Y intercept number to a negative so it will shift down the graph 14 units because if you have no adding number then your graph will start at 0 but it's -7 so it starts at -7 so now shift 14 places down

4

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -