AnswersIntegrated Math II FullModeling with Quadratic Functions

Solving Quadratic Equations: Zero Product Property Answers

12 verified answers4 views
1
Free Preview

What are the solutions of 3(x – 4)(2x – 3) = 0? Check all that apply.–4–334

A
–4
B
–3
C
Option
D
Option
E
3
F
4
86850

–5–212

A
–5
B
–2
C
1
D
2
86851

What are the roots of y = x2 – 3x – 10?

A
–3 and –10
B
–2 and 5
C
2 and –5
D
3 and 10
86852

Which functions have real zeros at 1 and 4? Check all that apply.f(x) = x2 + x + 4f(x) = x2 – 5x + 4f(x) = x2 + 3x – 4f(x) = –2x2 + 10x – 8f(x) = –4x2 – 16x – 1

A
f(x) = x2 + x + 4
B
f(x) = x2 – 5x + 4
C
f(x) = x2 + 3x – 4
D
f(x) = –2x2 + 10x – 8
E
f(x) = –4x2 – 16x – 1
86853

Which statements describe the graph of y = 4x2 + 28x + 49? Check all that apply.The graph has two x-intercepts because 4x2 + 28x + 49 has two different factors.The equation 2x + 7 = 0 can be used to find a zero of the function.The equation (2x – 7)2 = 0 can be used to find the y-intercept.The graph has a double root at x = StartFraction negative 7 Over 2 EndFraction .The graph intersects the y-axis at y = 49.

A
The graph has two x-intercepts because 4x2 + 28x + 49 has two different factors.
B
The equation 2x + 7 = 0 can be used to find a zero of the function.
C
The equation (2x – 7)2 = 0 can be used to find the y-intercept.
D
The graph has a double root at x = .
E
The graph intersects the y-axis at y = 49.
86854

–10/3 –4/32/35/3

A
–10/3
B
–4/3
C
2/3
D
5/3

Did you find these answers helpful?