Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = 
B. x = 25
C. x = 5
D. x = 5, x = -5
Answer: D
Mathematics
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Graph the quadratic equation.y = x2 + 4x - 1 
A. 
B. 
C. 
D. 
Mathematics
Combine and simplify, if possible.-11
- 9
A. (-2x - 1)
B. -20
C. (-20x - 1)
D. -2
Mathematics
For the given figure, find the ratio of the length of the longest side to the length of the shortest side. Write the ratio as a fraction in lowest terms.
A = 7 inchesB = 3 inchesC = 6 inches
A. 
B. 
C. 
D. 
Mathematics
Find the points of inflection.f(x) = - 
x3 + 6x2 - x
A. (3, -17) B. (3, 0) C. (3, 33) D. (-3, 75)
Mathematics