Make a scatter plot of the data below. x
y
25
150
50
178
75
216
100
265
125
323
150
392
175
470.4

Use the quadratic regression feature of a graphing calculator to find a quadratic model. Round to the nearest thousdandths place.
a.
y = 7.821 x squared minus 0.936 x minus 94.034
b.
y = negative 7.821 x squared + 0.936 x minus 94.034
c.
y = 0.008 x squared + 0.518 x + 131.886
d.
y = 0.008 x squared minus 0.518 x minus 131.886

Please select the best answer from the choices provided

A
B
C
D

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

Which of the following graphs could represent a quartic function?

Use a calculator to verify that σ(x) = 62, σ(x2) = 1034, σ(y) = 644, σ(y2) = 93,438, and σ(x y) = 9,622. compute r. (enter a number. round your answer to three decimal places.) as x increases from 3 to 22 months, does the value of r imply that y should tend to increase or decrease? explain your answer. given our value of r, y should tend to increase as x increases. given our value of r, we can not draw any conclusions for the behavior of y as x increases. given our value of r, y should tend to remain constant as x increases. given our value of r, y should tend to decrease as x increases.