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 - 6

A. minimum; 1
B. maximum; 1
C. maximum; - 7
D. minimum; - 7


Answer: D

Mathematics

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Solve the quadratic equation by any method.-4x = x2 - 40

A. ±2
B. -2 ± 2
C. -2 ± 2
D. 2 ± 2

Mathematics

Determine the domain and range of the relation. State whether the relation is a function or not a function. 

A. domain: {Alice, Brad, Carl} range: {cat, dog} not a function B. domain: {cat, dog} range: {Alice, Brad, Carl} not a function C. domain: {cat, dog} range: {Alice, Brad, Carl} function D. domain: {Alice, Brad, Carl} range: {cat, dog} function

Mathematics

Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a8 when a1 = 6, r = 2.

A. 768 B. 772 C. 1536 D. 20

Mathematics

Set up the payoff matrix and decide on the best strategy.A student can bring either a calculator or a reference book to an exam. The exam might stress calculations or definitions. If the exam stresses calculations then the student could gain 30 points with a calculator or 18 points with a reference book. If the exam stresses definitions, then a calculator would give the student 39 points but a reference book would give 15 points. Should the student bring a reference book or a calculator to the exam?

A.

B.

C.

D.

Mathematics