Determine whether f(x) could represent a linear function. If it could, write f(x) in the form f(x) = mx + b.
A. No
B. Yes; f(x) = 2x + 6
Answer: B
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Make the required change in the given equation.? = -2 cos ? sin ? to Cartesian coordinates
A. x2 + y2 + z2 + 2z = 0
B. 
= -2y
C. x2 + y2 + z2 + 2x = 0
D. 
= -2x
Perform the indicated operations.122 + 11 ? 9 - (12 + 5 ? 2)
A. 221 B. 209 C. 241 D. 1373
Use the distributive property to rewrite the algebraic expression without parentheses. Then simplify the result, if possible.6x - 2(5y - 9)
A. 6x - 10y - 9 B. 6x - 10y - 18 C. 6x - 10y + 18 D. 6x - 10y + 9
Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest hundred. Does the estimate give you reason to doubt the stated sum?
A. Estimate: 126,200 ; no B. Estimate: 126,400 ; no C. Estimate: 126,200 ; yes D. Estimate: 126,400 ; yes