Graph the parabola. State the vertex of the parabola.x = y2 - 4y + 4
A. vertex (2, 0)
B. vertex (0, -2)
C. vertex (-2, 8)
D. vertex (0, 2)
Answer: D
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Find all the numbers for which the rational expression is defined.
A. b ? 5 B. b ? -5 C. All real numbers. D. b ? 0
Solve the problem.For three sprints at a track meet, a runner covered a given distance in the following times: 8.6863 seconds, 8.1998 seconds, and 8.4545 seconds. List these times in descending order.
A. 8.4545 seconds, 8.1998 seconds, 8.6863 seconds B. 8.1998 seconds, 8.4545 seconds, 8.6863 seconds C. 8.4545 seconds, 8.6863 seconds, 8.1998 seconds D. 8.6863 seconds, 8.4545 seconds, 8.1998 seconds
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.logct + logcs
A. logc(t + s)
B. logct ? logcs
C. logc(
)
D. logc(ts)
Find all values of the variable for which the rational expression is undefined.
A. 13 B. -6 C. 6 D. 0