Problem 1:
this graph shows the amount of water melanie can pump over a given period of time
this equation shows the amount of water lori can pump in a given period of time:
w = 4h
who pumps water at the faster rate, melanie or lori?
this graph shows the number of emails yolanda writes in a day:
problem 2:
this graph shows the number of emails yolanda writes in a day:
this equation shows the number of emails that zoe writes in a day:
h = 2e
who has the higher rate of email production, yolanda or zoe?
how do you know this to be true?

360/29

step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is