Find the formula for the function.A point P in the first quadrant lies on the graph of the function f(x) = x2. Express the slope of the line joining P to the origin as a function of x.
A. m = 
B. m = 2x
C. m = 
D. m = x
Answer: D
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4 quarts = 1 ____
A. gallon B. foot C. pint D. cup
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 54
C. 5
D. 
Solve the problem.The area C of a circle with radius length r inches is C = C(r) = ?r2.a. Find the average rate of change of the area C as the radius length r changes from r = 4 to r = 4.1.b. Find the average rate of change of the area C as the radius length r changes from r = 4 to r = 4.01.c. Find the instantaneous rate of change of the area C with respect to the radius length r at r = 4.(Express all answers in terms of ?.)
A. a. 8.1? b. 8.01? c. 16? B. a. 328.1? b. 3208.01? c. 16? C. a. 8.1? b. 8.01? c. 8? D. a. 328.1? b. 3208.01? c. 8?
Simplify the right-hand side of the equation.f(x) = 
A. 
B. 
C. - 
D. 