Simplify. Combine like terms if possible.-9z - (-4z)
A. -5z
B. -5z2
C. -13z
D. 5z
Answer: A
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Graph the parabola and label the vertex. Find the y-intercept.y = 
x2 - 5
A. vertex (0, 5), y-intercept (0, 5)
B. vertex (0, 5), y-intercept (0, 5)
C. vertex (0, -5), y-intercept (0, -5)
D. vertex (0, -5), y-intercept (0, -5)
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 4(x2 + 4)(x - 6)2
A. 6, multiplicity 2, touches x-axis B. 6, multiplicity 2, crosses x-axis C. -4, multiplicity 1, touches x-axis; 6, multiplicity 2, crosses x-axis D. -4, multiplicity 1, crosses x-axis; 6, multiplicity 2, touches x-axis
Solve the equation by completing the square.x2 + 12x + 27 = 0
A. ±
B. 36, -9
C. 3, 9
D. -3, -9
Find the indicated term of the geometric sequence.a5 when a1 = 7 and r = - 
.
A. - 
B. 
C. - 
D. 