Use the vertical line test on the graph to determine if y is a function of x.
A. Not a function
B. Function
Answer: B
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Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = -6x4 - 6x3 - 4x2 - 5x + 7
A. possible: 0 or 2 pos, 0 or 2 neg
actual: 2 pos, 0 neg
B. possible: 1 pos, 1 or 3 neg
actual: 1 pos, 1 neg
C. possible: 1 pos, 1 neg
actual: 1 pos, 1 neg
D. possible: 1 pos, 1 or 3 neg
actual: 1 pos, 1 neg
Solve the problem. The following data shows the number of housing starts in various years in one beachside community. 
Let f(t) be the number of housing starts at t years since 2009. Use a graphing calculator to draw a scatterplot to describe the data. Using the same viewing window, draw the graph of the quadratic model 
. Use the model to predict when the number of housing starts will be 167.
What will be an ideal response?
Insert <, >, or = between the pair of numbers to form a true statement.
_____ 2.915
A. < B. > C. =
Determine which factoring technique is appropriate for the given polynomial.14x2 - 32x +8
A. trinomial, leading coefficient other than 1 B. factoring by grouping C. trinomial, leading coefficient of 1 D. factor out GCF