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Answer :
By looking at the scatter plot we can predict that the answer will be higher than previous answers since there is a positive relationship between x and y. With this idea, we can determine that a. is not the answer. Since it is too small of a y value. It also can't be b or c since these values are also small. Therefore the answer is d, for an x value of 200 the y value should be 555.5 from the choices given.
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The quadratic regression equation is y = 0.009 X^2 +0.371 X +136.171, and the y-value is 555.5 if the x-value is 200.
How to predict the y value when x = 200
To draw the scatter plot, we make use of a graphing calculator
See attachment for the scatter plot.
From the graphing calculator, the equation is:
y = 0.009 X^2 +0.371 X +136.171
When x = 200, we have:
y = 0.009 * 200^2 +0.371 * 200 +136.171
Evaluate the sum of products
y = 570.371
The closest value is 555.5
Hence, the y-value will be if the x-value is 200 is 555.5
Read more about quadratic regression equations at:
https://brainly.com/question/14279500
