Question

Help with finding equation of a line

Answer 1

I can't figure out how to find the y-intercept because it's a decimal. The y-intercept has to be in a fraction

Answer 2

first, we pick a point on the line that isn't on a decimal

(2,1) looks good

now we plug them into the equation

y = mx + b

where x = 2, y = 1, m = slope = (-2/3), and b is the y intercept

Answer 3

Once I put it all together I get -0.33333333333, how do I put it in fraction form?

Answer 4

hm, take a look at the graph, the y-intercept should be positive

Answer 5

1 = (-2/3)*2 + b

solve for b

Answer 6

Oops I think I did it wrong :(

Answer 7

start by finding (-2/3)*2

Answer 8

It equals -1.33333333

Answer 9

Then once I add it to 1 I get 2.333333333

Answer 10

So how do I make that into a fraction?

Answer 11

7/3

Answer 12

How did you do that?

Answer 13

I figured it out, Thanks Ms. Hatsune Miku!