Question

HELP WITH THIS PROBLEM???

Answer 1

y = 4x - 4

y = mx + c

First find the gradient.

6 - 2 = 4

Your gradient, m, is 4x.

Now find the constant, c.

y = mx + c

if y = 4 and x = 2

4 = 4 * 2 + c

4 = 8 + c

4 = 8 - 4

c = -4

y = 4x - 4

You can check it's right by substituting the other values.

y = 4x - 4

E.G

36 = 4 * 10 - 4

36 = 40 - 4