Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.15 as soon as you get in the taxi, to which a charge of $1.90 per mile is added. Find a linear equation that can be used to determine the cost, C, of an x-mile taxi ride.
A. C = 1.90x + 2.15
B. C = 2.15x + 1.90
C. C = 2.55x
D. C = 4.05x
Answer: A
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Use the graph of y = P(x) to do the following: (i) Find the x-intercepts; (ii) Solve the equation P(x) = 0; (iii) Find the zeros of P(x).
A. (i) -2, 5; (ii) -2, 5; (iii) -2, 5 B. (i) 0, 10; (ii) 0, 3, 10; (iii) 0, 3, 10 C. (i) 0, 3; (ii) 0, 3; (iii) 0, 3 D. (i) -2, 5, 10; (ii) -2, 5; (iii) -2, 5, 10
Tell whether the graph opens upward or downward and whether the graph is wider, narrower, or the same as f(x) = x2.f(x) = 
x2 - 5
A. Downward, narrower B. Downward, wider C. Upward, narrower D. Upward, wider
Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 108.5 ft B. 15.5 ft C. 217 ft D. 14.731 ft
Find the indicated quantity.a1, when a18 = 47 and a12 = 29
A. -1 B. 3 C. 2 D. -4