Answer:
Y = -7x+7
Step-by-step explanation:
(This takes a while)
A) Y = 7x - 7
B) Y = 7x + 7
C) Y = -7x + 7
D) Y = - 7x - 7
The asnwer is: C.
Because by distribution the numbers of [x], you will find that you will get [y]. And when you must do this with each of them in order to find out which is the right function.
(6,-35) -> Subsitute 6 into [x]:
Y = 7(6) - 7
Y = 42 - 7
Y = 35
This is wrong, because [y] is supposed to equal -35 and not 35. So A. is out.
B. is also positive, so that means you can't get a negative from it either, so that's out.
C. and D. are both negative, so its between these two.
Y = -7x + 7
Y = -7(6) +7
Y = -42 +7
Y = -35 <- Okay, so that's correct, now let's check D.
Y = -7(6) - 7
Y = -42 - 7
Y = -49 <- This answer is wrong, so your correct answer is C!
The best thing to do is distribute into each, it's quite a process, but it'll help you find out the answer!
