Question

Find the equation of the starlight line

Answer 1

We use the equation
y = mx + c

m is the gradient which in this case is 2/1 = 2 so we have:
y = 2x + c

c is the y-intercept which is where the line touches the y axis which in this case is 3

so the answer is:

y = 2x + 3

Answer 2

Y = mx + c

m = 2/1
m = 2

y = 2x + 3