Step-by-step explanation:
1. for (-1, -3)
check: -y = 4x + 7
-(-3) = 4(-1) + 7
3 = -4 + 7
3 = 3
Therefore, (-1, -3) is a solution to -y = 4x + 7
for (2, 15)
check: -y = 4x + 7
-15 = 4(2) + 7
-15 = 8 + 7
-15 = 15
Therefore, (2, 15) is NOT a solution to
-y = 4x + 7
for (0, 7)
check: -y = 4x + 7
-7 = 4(0) + 7
-7 = 0 + 7
-7 = 7
Therefore, (0, 7) is NOT a solution to
-y = 4x + 7
Answer:
(-1, -3) is a solution to -y = 4x + 7 but (2, 15) and
(0, 7) are NOT.
3. The graph overlap, this means that they intersect at all the points on the graph of x = 4 and y = -2
