Unit Test — Unit test

Question 1

The graph of g(x) is a translation of the function f(x) = x2. The vertex of g(x) is located 5 units above and 7 units to the right of the vertex of f(x). Which equation represents g(x)?

Revolt · Accepted Answer

g(x) = (x – 7)2 + 5

Question 2

Tempestt graphs a function that has a maximum located at (–4, 2). Which could be her graph?

Revolt · Accepted Answer

On a coordinate plane, a parabola opens down. It goes through (negative 6, negative 2), has a vertex at (negative 4, 2), and goes through (negative 2, negative 2).

Question 3

What is the y-intercept of the graph of the function f(x) = x2 + 3x + 5?

Revolt · Accepted Answer

(0, 5)

Question 4

The function relating the height of an object off the ground to the time spent falling is a quadratic relationship. Travis drops a tennis ball from the top of an office building 90 meters tall. Three seconds later, the ball lands on the ground. After 2 seconds, how far is the ball off the ground?

Revolt · Accepted Answer

50 meters

Question 5

The vertex of a quadratic function is (6, 2), and the y-intercept of the function is (0, −70). The equation of the function in vertex form, f(x)=a(x−h)2+k, is shown.−70=a(0−6)2+2

Revolt · Accepted Answer

−2

Unit Test — Unit test Answers

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