Translate the given formula to an English phrase using the word "varies".A = ?r2, where A is the area of a circle of radius r.
What will be an ideal response?
The area of a circle varies directly as the square of its radius.
Mathematics
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Complete the square to write the function in the form 
f(x) = x2 - 18x + 83
A. f(x) = (x - 9)2 - 2 B. f(x) = (x - (-2))2 - 9 C. f(x) = (x - (-9))2 + 2 D. f(x) = (x - 9)2 + 2
Mathematics
Use the product rule to multiply. Assume all variables represent positive real numbers.
? 
A. 4
B. 2
C. 8
D. 2
Mathematics
Graph the exponential function.f(x) = (
)x + 1 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A stretch of highway has a 5-ft vertical rise for every 
of horizontal run. Use a function involving tangent to estimate the grade resistance for a 
car travelling on this stretch of highway. Give your answer to the nearest pound.
A. 35 pounds B. 150 pounds C. 25 pounds D. 6 pounds
Mathematics