I don't know how to do this

y = 2x + 3

Step-by-step explanation:

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

m is the gradient of the line. You can work this out like this:

Change in y ÷ change in x

So you have your 2 coordinates, (1,5) and (0,3).

(be careful to choose one coordinate to go first and one to go last)

So to work out m, you would do

5-3 ÷ 1-0 = 2/1 = 2

so that is the first half of the equation, y = 2x

but now you need c, which is the y-intercept. So this is the point on your graph where the point crosses y, so in your question, it would be 3 because it crosses y at 3.

So your answer is y = 2x + 3

the answer should be:

a. 3, 4, and 6

b. 18, 24, and 36

c. 4.8, 6.4, and 9.6

hope i

-lavira : )