Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions.t2 + 12t + 36 = 0
A. Two different rational solutions
B. Exactly one rational solution
C. Two different imaginary solutions
D. Two different irrational solutions
Answer: B
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Solve the problem.Find f(-2) when f(x) = 2x2 - 4x - 6.
A. 22 B. -6 C. 10 D. 6
The graph of a piecewise-defined function is given. Write a definition for the function. 
A. 
B. 
C. 
D. 
Solve.Each month a gas station sells x gallons of gas at $1.92/gallon. The cost to the owner of the gas station for each gallon of gas is $1.32. The monthly fixed cost for running the gas station is $37,000. Write an equation that relates the monthly profit, in dollars, to the number of gallons of gasoline sold. Then use the equation to find the monthly profit when 75,000 gallons of gas are sold in a month.
A. P = 0.60x + 37,000; $82,000 B. P = 1.92x - 37,000; $107,000 C. P = 0.60x - 37,000; $8000 D. P = 1.32x - 37,000; $62,000
Find the coordinates of the midpoint of the line segment PQ.P(m, n), Q(n, m)
A. 
B. 
C. (mn, mn)
D. (m + n, m + n)