Question

Find the slope of a line that passes through (–2, –3), (1, 1).

Answer 1

Do you know the slope formula?

Answer 2

ehh no:/

Answer 3

slope = (y2 - y1)/(x2 - x1)

Answer 4

If

x1 = -2
y1 = -3

what are

x2?
y2?

Answer 5

x is -2 and -3?

Answer 6

x1 = -2
y1 = -3

what is x2?

x2 = ??

Answer 7

-3?

Answer 8

Do you see the second point in your question?

x2 =1

what is y2?

Answer 9

-2 is xi and 1 is x2? then -3 is y1? and 1 is y2?

Answer 10

Yes, now we need the slope formula

x1 = -2
y1 = -3
x2 = 1
y2 = 1

slope = (y2 - y1)/(x2 - x1)

so I will substitute the y's

slope = (1 - -3)/(x2 - x1)

or

slope = 4/(x2 - x1)

Can you substitute the x's?

Answer 11

1.5?

Answer 12

What did you get for x2 - x1?

x2 = 1
x1 = -2

x2 - x1 =??

Answer 13

x2 - x1 = 1 - -2 = 3

I got 4 and you got 3; therefore the slope is

4/3 <---------- answer