Find an equation of the line containing the given pair of points(8, -3) and (8, 1)
A. x = 8
B. 1x - 3y = 0
C. y = -3
D. -3x + 1y = 0
Answer: A
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The monthly cost of driving a car depends on the number of miles driven. Julia found that in October it cost her $200 to drive 300 mi and in July it cost her $350 to drive 600 mi. Express the monthly cost C as a function of the distance driven d assuming that a linear relationship gives a suitable model.
What will be an ideal response?
Referring to triangle ABC, find the area of the triangle.
?
?
Round to three significant digits.
?
A. 3.40 ft2 B. 3.16 ft2 C. 3.36 ft2 D. 3.24 ft2 E. 3.28 ft2
Solve the problem using the quadratic formula.For a car traveling at x mph, stopping distance is estimated by the formula d(x) = 
x2 + 
x. Find a (maximum) safe speed for a stopping distance of 630 ft. Round your answer to the nearest mph.
A. 65 mph B. 70 mph C. 73 mph D. 61 mph
Find a and k and then evaluate the function. Round your answer to three decimal places when necessary.Let f(x) = 10 + a(2kx) with f(0) = 50 and f(1) = 170. Find f(3).
A. a = 40, k = 2, f(3) = 74 B. a = 40, k = 2, f(3) = 2560 C. a = 40, k = 2, f(3) = 2570 D. a = 4, k = 2, f(3) = 266