PLZ HELP 20 POINTS

Step-by-step explanation:

8.

slope=(83-3)/(10-0)=80/10=8

y-3=8(x-0)

y=8x+3

when x=20

y=8(20)+3=163

243=8x+3

243-3=8x

8x=240

x=240/8=30

when x=40

y=8*40+3=320+3=323

9.

(0,8) and (5,6)

m=(6-8)/(5-0)=-2/5=-0.4

y-8=-0.4(x-0)

y=-0.4x+8

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation:

hi there

the slope is 1/3.

this is because from the y-intercept, you go up one, and you go to the right three, to get to the next exact point on the graph. this is known at the “rise over run.”

p.s. (if you need it).your y-intercept is -2, because that is the point on the graph where the line crosses the y-axis.

hope that : )