Question

Devon made the scatter plot to track his bank balance over time.



What is the equation of the graphed linear model?

Answer 1

@jackie571 it is 245

Answer 2

Look at where the line intercepts the Y- axis, it is kind of small and hard to see, but each tick mark is 10 units.

Answer 3

It is in the middle of 240 and 260

Answer 4

To calculate the slope, use two points that are on the line that you know for sure, like
(0 , 250) and (14 , 40)

Answer 5

so -7?

Answer 6

not -7

Answer 7

hey thats my name devon

Answer 8

slope = (40 - 250) / (14 - 0)

Answer 9

And the Y intercept is exactly half way between 240 and 260

Answer 10

-15 @DanJS