4. Explain why the survey question below may be biased or otherwise introduce bias into the survey. Then describe a way to correct the flaw.

A child asks, "Do you support the construction of a new children's hospital?"

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

Write the function for the graph. (1.8) (0,4)

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585