Use a graphing calculator to make a conjecture as to whether each equation is an identity.sin 2x = 2 sin x
A. Not an identity
B. Identity
Answer: A
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Use the Factor Theorem to determine whether x - c is a factor of the given function for the given value of c. If x - c is a factor, then write f in factored form. That is, write f(x) = (x - c)(quotient).f(x) = 6x3 + 55x2 + 61x + 40; c = -8
A. Yes; f(x) = (x - 8)(6x2 + 7x - 5) B. Yes; f(x) = (x + 8)(6x2 + x + 5) C. Yes; f(x) = (x + 8)(6x2 + 7x + 5) D. No
Find the exact value of the expression.cot-1
A. 
B. 
C. 
D. 
Find the slope of the line.
A. 2
B. - 
C. - 2
D. 
Solve the problem.Kevin invested part of his $10,000 bonus in a certificate of deposit that paid 6% annual simple interest, and the remainder in a mutual fund that paid 11% annual simple interest. If his total interest for that year was $800, how much did Kevin invest in the mutual fund?
A. $3000 B. $4000 C. $6000 D. $5000