Solving Quadratic Equations: Square Root Property — Cumulative exam Answers
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21
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Clara writes the equation (x – 13)(x + 8) = 196 to solve for the missing side length of a rectangle represented by the factor x + 8. What is the missing side length represented by x + 8 units of the rectangle?
A
7B
15C
20D
2822
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Giselle graphs the function f(x) = x2. Robin graphs the function g(x) = –x2. How does Robin’s graph relate to Giselle’s?
A
Robin’s graph is a reflection of Giselle’s graph over the x-axis.B
Robin’s graph is a reflection of Giselle’s graph over the y-axis.C
Robin’s graph is a translation of Giselle’s graph 1 unit down.D
Robin’s graph is a translation of Giselle’s graph 1 unit left.23
What is the difference of the two polynomials?(7y2 + 6xy) – (–2xy + 3)
A
7y2 + 4xy – 3B
7y2 + 8xy – 3C
7y2 + 4xy + 3D
7y2 + 8xy + 324
Which is the graph of the function f(x) = x2 + 2x + 3?
A
On a coordinate plane, a parabola opens up. It goes through (negative 2, 3), has a vertex at (negative 1, 2), and goes through (0, 3).
B
On a coordinate plane, a parabola opens up. It goes through (0, 3), has a vertex at (1, 2), and goes through (2, 3).
C
On a coordinate plane, a parabola opens up. It goes through (negative 4, 3), has a vertex at (negative 2, negative 1), and goes through (0, 3).
D
On a coordinate plane, a parabola opens up. It goes through (0, 3), has a vertex at (2, negative 1), and goes through (4, 3).
25
The graph of the function f(x) = (x + 2)(x − 4) is shown.
A
all real values of x where x < −2B
all real values of x where −2 < x < 4C
all real values of x where 1 < x < 4D
all real values of x where x < 0Did you find these answers helpful?
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