Identify the graph of the equation as a parabola, hyperbola, ellipse, or circle.y2 = 50 - x2
A. hyperbola
B. parabola
C. ellipse
D. circle
Answer: D
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Solve the absolute value inequality. Write the solution set using interval notation.
> 8
A. (-8, 8) B. (-?, -8) ? (8, ?) C. (8, ?) D. (-8, ?)
Perform the indicated operations.Estimate by rounding to the nearest ten, then find the actual sum. 48172687
A. Estimate: 210 Actual: 193 B. Estimate: 200 Actual: 265 C. Estimate: 193 Actual: 145 D. Estimate: 190 Actual: 178
Rationalize the equation, then use it to solve the problem.Police use a formula s = S 
, where S is the test-car speed and L is the test-skid length, to find the actual speed s in an accident which left a skid mark of l. Find the speed (nearest tenth) when 
What will be an ideal response?
Tell whether a linear model or a quadratic model is appropriate for the data. If a quadratic model is appropriate, then decide also whether the lead coefficient should be positive or negative.
A. Quadratic; leading coefficient negative B. Quadratic; leading coefficient positive C. Linear