Suppose 
is a linear function with slope 8. Find the equation of change for f.
?
A. 
B. 
C. 
D. 
Answer: A
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Solve the inequality. Write the solution set in interval notation.x2 + 7x ? 0
A. (-?, -7] B. (-?, -7] ? [0, ?) C. [-7, 0] D. [0, ?)
From the graph of the parabola, determine whether the parabola opens upward or downward, and find the vertex, axis of symmetry, and range of the function. Find the maximum or minimum value of the function and the intervals on which the function is increasing or decreasing.
A. Down, (1, 1), x = 1, [-1, 3], max 1, inc (-?, 1], dec [1, ?) B. Down, (1, 1), x = 1, (-?, 1], max 1, inc (-?, 1], dec [1, ?) C. Down, (1, 1), x = 1, [1, ?), max 1, inc (-?, 1], dec [1, ?) D. Down, (1, 1), x = 1, [1, ?), min -1, inc [0, 1), dec (-?, 0]
Solve the problem.Several of Dan's friends decided to equally share the 
cost of a set of cookware for a wedding gift for Dan and his fiance, Jen. However, before the wedding, 5 more of Dan's friends joined the others in giving the couple the cookware. This lowered the contribution of each person by 
. How many friends originally agreed to share the cost of the cookware?
A. 10 friends B. 5 friends C. 9 friends D. 4 friends
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(x2y5)7/4
A. x15/4y27/4 B. x35/4y7/2 C. x7/2y35/4 D. x8/7y20/7