Question

The equation y = 1.6x represents the number of laps Henry can swim over time, where y is the number of laps and x is time in minutes. The table shows the number of laps Larry can swim over time.

How many laps can each boy complete per minute, and who can swim laps at a faster rate?

Henry: laps per minute

Larry: laps per minute

The boy who swims at a faster rate is . (Type H for Henry or L for Larry)


Larry
Time (min) 2.5 4 5.5 8
Laps completed 4.5 7.2 9.9 14.4

Answer 1

@Haichi

Answer 2

can you make an equation of a line using the data for Larry

Answer 3

idk how 2 solve the problem

Answer 4

first find the slope , pick two points from Larry swim times

Answer 5

The ordered pair (x,y) represents ( time , # laps)

So we can use points (2.5 , 4.5) and ( 4, 7.2)

Answer 6

slope = (difference in y) / (difference in x)

So here,
slope = (7.2 - 4.5 ) / ( 4 - 2 )

Answer 7

@TheEdwardsFamily

Answer 8

multiply 1.6 times 1.8 to get harry think

Answer 9

no I take that back

Answer 10

@DanJS

Answer 11

@Nnesha @MARC_

Answer 12

?

Answer 13

do you have any guess what the answer might be @DanJS ?

Answer 14

@perl did exactly right

y = mx + b ; m = slope = laps / min

Larry --
y = 1.6x + 0

Henry---
Find slope m = laps / min and compare to larry's laps/min

Answer 15

Which part is unclear?

Answer 16

im so confused

Answer 17

They both swim at a constant rate.

For Larry:

Laps = 1.6*(minutes)

In 1 minute, how many laps does Larry swim? Let minutes = 1

Answer 18

gtgt bed @jordanloveangel! :(

Answer 19

kk

Answer 20

Henry: 1.6 laps per minute, Larry: 1.8 laps per minute and the boy who swims at a faster rate is L.