A graph titled Monthly Sales and Advertising Costs has Advertising Costs (1,000 dollars) on the x-axis and sales (1,000 dollars) on the y-axis. A line goes through points (6.4, 117) and (6.6, 120).
The scatterplot and trend line show a positive correlation between advertising costs and sales.
Which two points can be used to find the slope of the trend line?
Point 1:
Point 2:
Answers
Given : A graph titled Monthly Sales and Advertising Costs . A line goes through points (6.4, 117) and (6.6, 120).
To find : Which two points can be used to find the slope of the trend line
Solution:
A line goes through points (6.4, 117) and (6.6, 120).
To find slope both these points can be used as
trend line goes through these points
Point 1 = ( 6.4 , 117)
point 2 = ( 6.6 , 120)
Slope of trend line = ( 120 - 117) / ( 6.6 - 6.4)
= 3/(0.2)
= 3 * 10 /2
= 30/2
= 15
15 is the Slope of trend line
& point used are from which trend line goes through
means ( 6.4 , 117) & ( 6.6 , 120)
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Answer:
if your looking what the b is for y = 15x + b
then it would be 21
Step-by-step explanation:
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