Determine the discriminant of the quadratic equation. Use the value of the discriminant to determine whether the quadratic equation has two rational solutions, two irrational solutions, one repeated real solution, or two complex solutions that are not real.x2 - 7x - 8 = 0
A. Two complex solutions that are not real
B. One repeated real solution
C. Two rational solutions
D. Two irrational solutions
Answer: C
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Solve the problem.The resistance R produced by wiring resistors of R1 and R2 ohms in parallel can be calculated from the formula 
If R1 and R2 are measured to be 3 ohms and 4 ohms respectively and if these measurements are accurate to within 0.05 ohms, estimate the maximum percentage error in computing R.
A. 2.98% B. 1.49% C. 1.79% D. 2.38%
Find the slope of the line that goes through the pair of points.(3, -8) and (3, 4)
A. 2 B. 12 C. Undefined D. 6
Graph the given function as a solid line (or curve) and its inverse as a dashed line (or curve) on the same set of axes.f(x) = -5x + 8
A. 
B. 
C. 
D. 
The graph of a trigonometric function of the form y = A sin (Bx) or y = A cos (Bx) for B > 0 is given. Determine the equation of the function represented by the graph.
A. y = 4 cos 
x
B. y = 2 cos 
x
C. y = 2 cos 4x
D. y = 4 cos 2x