slope (rate): how much y changes as x-increases by 1

y-intercept: the y-value when x = 0

x

-1

0

1

2

3

4

y

-1

1

3

5

7

9

1 Compute the slope:

2 Compute the y-intercept:

3 What strategies did you use to compute the slope and y-intercept?

The slope and y-intercept in this table are harder to find, because the x-values don’t go up by 1 and we can’t see a value for x = 0.
Try filling in the points that have been skipped to compute the slope and y-intercept.

x

3

6

9

12

y

4

9

14

19

4 Compute the slope:

5 Compute the y-intercept:

The slope and y-intercept in this table are even harder to find, because the x-values are out of order!

Calculate the slope and y-intercept from any two points! Be sure to show your work.

x

3

20

5

9

1

y

5

56

11

23

-1

6 Compute the slope:

7 Compute the y-intercept:

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