Television ads
the following data was collected in past years to try to determine how tv ads
affect cd sales. plot the points and estimate the line of best fit.
number increase in
of tv cd sales
ads
0
725
250
900
450
400
ununu
increase in cd sales
100 200 300 400 500 600 700 800 900 1000
750
600
350
575
450
700
150
325
950
0
6
0
1
2
7
8
9
10
3 4 5 6
number of tv ads
use the points (1, 150) and (6, 900) to estimate the line of best fit.
1. graph the line that goes through both given points above.
needed info:
2. find the slope of the line.
y=mx+b
slope formula
y-y,
= m
3. write the equation of the line.
x
-x,
4. what does the slope tell you about how each tv ad affects sales?
for every tv ad, cd sales increased by about

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

none of these

step-by-step explanation:

23 + 34 add up to 57 so just inform the teacher of this really stupid mistake