Geometric Sequences — Unit test Answers
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The dimensions of a triangle are represented by the functions shown.
g
g(x) = 12x2 + 6xg
g(x) = 12x2 – 6xg
g(x) = 24x2 – 12xg
g(x) = 12x – 662
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Which function has a vertex on the y-axis?
f
f(x) = (x – 2)2f
f(x) = x(x + 2)f
f(x) = (x – 2)(x + 2)f
f(x) = (x + 1)(x – 2)63
three
T
The vertex of the function is at (–4,–15).T
The vertex of the function is at (–3,–16).T
The graph is increasing on the interval x > –3.T
The graph is positive only on the intervals where x 1.T
The graph is negative on the interval x < –4.64
Giselle graphs the function f(x) = x2. Robin graphs the function g(x) = –x2. How does Robin’s graph relate to Giselle’s?
R
Robin’s graph is a reflection of Giselle’s graph over the x-axis.R
Robin’s graph is a reflection of Giselle’s graph over the y-axis.R
Robin’s graph is a translation of Giselle’s graph 1 unit down.R
Robin’s graph is a translation of Giselle’s graph 1 unit left.65
What are the x-intercepts of the graph of the function f(x) = x2 + 5x − 36?
(
(−4, 0) and (9, 0)(
(4, 0) and (−9, 0)(
(−3, 0) and (12, 0)(
(3, 0) and (−12, 0)66
The function f(x) = 2·5x can be used to represent the curve through the points (1, 10), (2, 50), and (3, 250). What is the multiplicative rate of change of the function?
A
2B
5C
10D
3267
On a coordinate plane, an exponential function approached y = 0 in quadrant 2 and increases into quadrant 1. It crosses the x-axis at (0, 2).
A
0B
1C
2D
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