Find the x- and y-intercepts of the graph.
A. (2, 0), (0, -4)
B. (4, 0), (0, 2)
C. (-4, 0), (0, -2)
D. (-4, 0), (0, 2)
Answer: D
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Use the graph to identify the x- and y- intercepts or state that there is no x- or y-intercept.
A. x-intercept = 9; no y-intercept B. x-intercept = 9; y-intercept = -9 C. x-intercept = 9; y-intercept = 0 D. no x-intercept; y-intercept = 9
Solve the problem.A pendulum bob swings through an arc 80 inches long on its first swing. Each swing thereafter, it swings only 85% as far as on the previous swing. What is the length of the arc after 9 swings? Round to two decimal places.
A. 21.80 in. B. 15.75 in. C. 18.53 in. D. 544.00 in.
Solve the problem.The 8 ft wall shown here stands 27 feet from the building. Find the length of the shortest straight beam that will reach to the side of the building from the ground outside the wall.
A. 35 ft B. 47.9 ft C. 46.9 ft D. 45.9 ft
Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = -x2 - 5
A. vertex (5, 0); axis x = 5
B. vertex (-5, 0); axis x = -5
C. vertex (0, -5); axis x = 0
D. vertex (0, 5); axis x = 0