Question

y = 4x and y + x = 5 (1 point)
(–4, 1)
(1, 4)
(–3, 2)
(2, 3)

Answer 1

y + x = 5

4x + x = 5 ... replace y with 4x (since y = 4x)

5x = 5

x = 5/5

x = 1

now use this to find y (plug it into y = 4x)

Answer 2

y+x=5 or y = 5-x
5-x = 4x or
5 = 5x
x = 1

Answer 3

its B?

Answer 4

correct, if x = 1, then

y = 4x

y = 4*1 ... plug in x = 1

y = 4

So the solution is (1,4)