Question

What is the equation of the blue line?

Answer 1

Y=4x-3

Explanation:

(1,1) (0,-3)

To find the slope:

-3 -1/ 0-1 = -4/-1 = 4

Equation is y=mx+b

Y= 4x-3

Answer 2

The equation of any straight line on a graph is y = mx + c

m = gradient = rise/run = 4/1 = 4

c = where it cuts the y axis = -3

the equation of the line is y = 4x - 3