Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = x2 + 2x - 7

A. minimum; - 1
B. maximum; - 1
C. maximum; - 8
D. minimum; - 8


Answer: D

Mathematics

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Solve the problem.A parallelogram has a base of length 2x + 1 and a height of x + 3 and has an area of 42 square units. Find the base and height of the parallelogram. (A = bh)

A. height = 3 units; base = 14 units B. height = 6 units; base = 7 units C. height = 14 units; base = 3 units D. height = 7 units; base = 6 units

Mathematics

Write the slope-intercept form of the equation for the line passing through the given pair of points.(5, 9) and (0, -8)

A. y = - x - 8
B. y = x - 8
C. y = - x - 8
D. y = x - 8

Mathematics

Determine whether the sequence is geometric.4, -12, 36, -108, 324, . . .

A. Geometric B. Not geometric

Mathematics

Evaluate the polynomial.-5x2 + 10x + 1for x = 4

A. 21 B. -43 C. -39 D. -49

Mathematics