Graphing Exponential Functions Answers
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21
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Which graph shows the solution set of ?
A
mc011-2.jpg
B
mc011-3.jpg
C
mc011-4.jpg
D
mc011-5.jpg
22
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What are the roots of the polynomial equation ? Use a graphing calculator and a system of equations. Round noninteger roots to the nearest hundredth.
A
–12, 20B
–2.73, 2, 2.73C
–1.73, 1.73, 2D
–20, 1223
What is the partial fraction decomposition of ?
A
StartFraction 6 x + 17 Over (x + 1) squared EndFraction = StartFraction 6 Over x + 1 EndFraction + StartFraction 11 Over (x + 1) squared EndFraction
B
SStartFraction 6 x + 17 Over (x + 1) squared EndFraction = StartFraction 6 Over x + 1 EndFraction + StartFraction 17 Over (x + 1) squared EndFraction
C
StartFraction 6 x + 17 Over (x + 1) squared EndFraction = StartFraction 6 Over x + 1 EndFraction + StartFraction 11 Over (x + 1) squared EndFraction
D
StartFraction 6 x + 17 Over (x + 1) squared EndFraction = StartFraction 6 Over x + 1 EndFraction minus StartFraction 17 Over (x + 1) squared EndFraction
24
What is the solution to (x + 2)(x – 3)2 > 0?
A
A number line going from negative 4 to 4. The entire line is shaded with arrows going left and right.
B
A number line going from negative 4 to 4. An open circle is at negative 2. The line is shaded to the right of negative 2.
C
A number line going from negative 4 to 4. Open circles are at negative 2 and 3. The line is shaded between negative 2 and 3.
D
A number line going from negative 4 to 4. Open circles are at negative 2 and 3. The line is shaded to the right of negative 2.
25
Review the work showing the first few steps in writing a partial fraction decomposition.2x2 + 15x + 19 = A(x + 4)2 + B(x + 4) + C2x2 + 15x + 19 = Ax2 + 8Ax + 16A + Bx + 4B + C
A
Option
B
Option
C
Option
D
Option
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