Based on the line of best fit, how many students wear a jacket to school when the temperature is 80 degrees F
1 answer:
Answer:
60 children
Step-by-step explanation:
Using the given regression graph is o make prediction on how any student wear a jacket to school at temperature = 80° F
All we have to do is locate 80 on the x axis and trave up to the point where it intersects the regression line. This intersection point is the traced to the y axis and the reading is taken, this is the prediction on the number of children who wears jacket when temperature is 80°.
By doing this, the value obtained is 60
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ALWAYS set equation equal to zero, which in this case has already been done for us.
Step two:
Figure out what formula you need to use in order to solve in this case I'd use the Quadratic formula.
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Then you would plug in the information.
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ALWAYS set equation equal to zero, which in this case has already been done for us.
Step two:
Figure out what formula you need to use in order to solve in this case I'd use the Quadratic formula.
a=1
b=9
c=2
Quadratic formula:
Then you would plug in the information.
The solve for what is underneath the square root ONLY.
Since you cannot solve this any further, your final two answers are...