Answer the question from the attachment.

-x - 7y = 18

4x + 7y = -30

The -7y and 7y cancel by addition.

Thus, 3x = -12

Divide both sides by 3

x = -4

Plug in -4 for x

Thus, -(-4) - 7y = 18

4 - 7y = 18

Subtract 4 to both sides; 4 - 4 - 7y = 18 - 4

Simplify, -7y = 14

Divide both sides by -7; -7y/-7 = 14 / -7

y = -2

y = 2x+4

Step-by-step explanation:

From the graph, we can tell that slope is 2 because if we go up 2 units up from (0,4) which is point Q and then go right 1 unit, the slope is 2. The y intercept is (0,4)

y = mx + b

m --> slope

b --> y-intercept

y = 2x+4