Question

The graph below shows the relationship between the number of months different students practiced tennis and the number of matches they won:
Part A: What is the approximate y-intercept of the line of best fit and what does it represent? (5 points)

Part B: Write the equation for the line of best fit in the slope-intercept form and use it to predict the number of matches that could be won after 13 months of practice. (5 points)

Answer 1

@Nnesha

Answer 2

@jim_thompson5910

Answer 3

@ganeshie8 @Hero

Answer 4

@campbell_st

Answer 5

A where does the line cut the y-axis

Answer 6

?

Answer 7

y axis is the vertical axis

Answer 8

i know but what do u mean cut?

Answer 9

where it starts on the vertical axis

Answer 10

3?

Answer 11

seems to be a bit more that half way between 2 and 4

Answer 12

3.5?

Answer 13

ok...

part B, find the slope of the line

Answer 14

so part a is 3.5?

and i have trouble finding slope

Answer 15

well you have 1 point (0. 3.5)

find another point on the line.

Answer 16

(1,3)

Answer 17

I don't think (1, 3) is on the line... on the x axis go up x = 5 till you hit the line

what is the point..?

Answer 18

1,3 is the second point

Answer 19

and 5,12

Answer 20

@triciaal @campbell_st

Answer 21

@Nnesha

Answer 22

great so you have 2 points

(0, 3.5) and (5, 12) so how far from 0 to 5 this is the run

and how far from 3.5 to 12 this is the rise

Answer 23

?

Answer 24

if you start at 0 and go to 5, have far did you go..?

and if you start at 3.5 and go to 12 how far did you go..?

Answer 25

8.5 and 5