Use the discriminant to determine the nature of the roots of the equation.
?
?
Do not solve the equation.
?
A. not real
B. real
Answer: A
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Combine like terms.3x - 4y - 2 + 5x
A. 2xy B. 8x - 4y C. 8x - 4y - 2 D. 8x - 6y
Solve the problem.The curve y = ax2 + bx + c passes through the point (2, 26) and is tangent to the line 
at the origin. Find a, b, and c.
A. a = 6, b = 0, c = 0 B. a = 3, b = 0, c = 5 C. a = 5, b = 3, c = 0 D. a = 0, b = 5, c = 3
Convert as indicated. When necessary, round to the nearest tenth of a degree.In a European cookbook, a recipe requires a mixture for candy to be heated to 
but the cook only has access to a Fahrenheit thermometer. Find the temperature in degrees Fahrenheit that should be used for making this candy.
A. 259.2° F B. 233.6° F C. 242.8° F D. 80° F
Evaluate the limit based on the graph of f shown.
f
A. -? B. 0 C. ? D. 1