The graph of the inequality can be seen in the image below.
Here we have:
-3 < y - 7x < 15
Isolating y, we get:
-3 + 7x < y < 15 + 7x
So we need to graph two linear inequalities:
y > -3 + 7x
y < 15 + 7x
So we need to graph two parallel lines (with dashed lines, the lines aren't solutions) and shade the region above the first line and below the second line.
The graph is below:
If you want to learn more about inequalities:
https://brainly.com/question/18881247
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