Answer:
y = 7x
Step-by-step explanation:
to find the gradient, change in y ÷ change in x so 56 ÷ 8 to get y = 7x + b
to find b you substitute in x and y so
56 = 7 X 8 + b
56 = 56 + b
0 = b (-56)
so it is y = 7x