Question

Please check my answer on point slopes.. I must have made a mistake!

Here is the problem:

Find the equation of a line given the point and slope below. Arrange your answer in the form y = mx + b, where b is the constant.

(1, 3)

m = 2

y = 3x + b ?? Can't I eliminate the b?

Answer 1

How do I eliminate the b?

Answer 2

The given point (1,3) is in the form (x,y)

So (x,y) = (1,3) which means that x = 1 and y = 3

Answer 3

So

y = 3x + b

3 = 3(1) + b

and you can now solve for b

Answer 4

Okay, b is zero then.

Answer 5

Except that it seems that the slope is given as 2

Answer 6

y = 3

Answer 7

oh glossed over that part, my bad

Answer 8

So it should be y = 2x + b because m = 2

Answer 9

y = mx + b

y = 2x + b

3 = 2(1) + b

now you can solve for b

Answer 10

y = 2x + 1

Answer 11

good

Answer 12

yes roko

Answer 13

Thanks.. I wish I could give "best response to both of you!