Write a formula for the function described.Function Y computes the number of square yards in x square feet.
A. Y(x) = x - 9
B. Y(x) = 9x
C. Y(x) = 
D. fY(x) = 
Answer: C
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For the functions f(x) and g(x), determine the domain of (f/g)(x) (the quotient of f and g).f(x) = 
, g(x) = 9 - x
A. {x ? x is a real number and x ? 3} B. {x ? x is a real number and x ? -3 and x ? -9} C. {x ? x is a real number and x ? 9} D. {x ? x is a real number and x ? 3 and x ? 9}
Use a graphing utility to graph the polar equation.r = 3 - sin ?6
-6
A.
| 6 |
| -6 |
B.
| 6 |
| -6 |
C.
| 6 |
| -6 |
D.
| 6 |
| -6 |
Find the y-intercept and any x-intercepts.y = -3x2 - 4x + 2
A. y-intercept (0, 2), x-intercepts 
and 
B. y-intercept (0, 2), no x-intercepts
C. y-intercept (0, 2), x-intercepts 
and 
D. y-intercept (0, 2), x-intercepts 
and 
Solve the problem.Jill is 8 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1 km/hr. They meet in 2 hours. How fast is Joe walking?
A. 5 kilometers/hour B. 6 kilometers/hour C. 2 kilometers/hour D. 3 kilometers/hour