Question

Which of the following is a solution for the system y = -3x + 5 and y = 2x + 5?

Answer 1

A. (1, 7)
B. (5, 0)
C. (2, -1)
D. (0, 5)

Answer 2

Is this where I plug the numbers in and try to get them to equal the same, or is this different?

Answer 3

.substitute and see which works :)

Answer 4

yes

Answer 5

yup. plugging is one true and tried method :P

Answer 6

Did you get D?

Answer 7

Okay so I don't get this.. what am I doing wrong? The equations do not equal up.
Here is what I got:

y = -3(1)+5 = 6 y = 2(7)+5 = 12

y = -3(5)+5 = 10 y = 2(0)+5 = 5

y = -3(2)+5 = 7 y = 2(-1)+5 = 4

y = -3(0)+5 = 5 y = 2(5)+5 = 10

Answer 8

y = -3(0)+5 = 5 y = 2(5)+5 = 10

The trouble is that x = 0 and you replaced x with 5 in the second part.

Answer 9

Oh! Alright. So my answer would be D then?

Answer 10

That's what I got.

Answer 11

It makes sense to me too. Thanks Mertsj! :)

Answer 12

yw