Find the coordinates of the vertex and x-intercepts for the quadratic function.f(x) = -x2 + 4x + 5
A. vertex (2, -9)
x-intercepts (5, 0), (- 1, 0)
B. vertex (-2, 9)
x-intercepts (-5, 0), (1, 0)
C. vertex (2, 9)
x-intercepts (5, 0), (- 1, 0)
D. vertex (-2, -9)
x-intercepts (-5, 0), (1, 0)
Answer: C
Mathematics
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Find the square root.-
A. 3 B. -4 C. -3 D. Not a real number
Mathematics
Find the foci of the hyperbola.y2 - x2 = -162
A. (9, 0) and (-9, 0)
B. (0, 18) and (0, -18)
C. (18, 0) and (-18, 0)
D. (
, 0) and (-
, 0)
Mathematics
Solve the system of equations by substitution.
A. x = 10, y = 0; (10, 0) B. x = 0, y = 10; (0, 10) C. x = 10, y = 10; (10, 10) D. x = 0, y = 0; (0, 10)
Mathematics
Determine whether the sequence is geometric.3, 3, 12, 12, 48, 48, . . .
A. Geometric B. Not geometric
Mathematics