Introduction to Quadratic Functions Answers
10 verified answers2 views
1
Free Preview
Consider the quadratic function f(x)=8x2−7x+6. What is the constant of the function?
A
−7B
6C
7D
82
Free Preview
Which graph represents a quadratic function with a vertex at (0, 0)?
A
On a coordinate plane, a parabola opens up. It goes through (negative 5, 6), has a vertex of (0, 1), and goes through (5, 6).
B
On a coordinate plane, a parabola opens up. It goes through (negative 6, 6), has a vertex of (0, negative 1), and goes through (6, 6).
C
On a coordinate plane, a parabola opens up. It goes through (negative 5, 6), has a vertex of (0, 0), and goes through (5, 6).
D
On a coordinate plane, a parabola opens up. It goes through (negative 2.5, 6), has a vertex of (3, 0), and goes through (7.5, 4).
3
Which equation represents a quadratic function with a leading coefficient of 2 and a constant term of –3?
A
f(x) = 2x3 – 3B
f(x) = –3x2 – 3x + 2C
f(x) = –3x3 + 2D
f(x) = 2x2 + 3x – 34
Which represents a quadratic function?
A
f(x) = 2x3 + 2x2 – 4B
f(x) = –7x2 – x + 2C
f(x) = –3x + 2D
f(x) = 0x2 + 3x – 36
Which graph shows a negative rate of change for the interval 0 to 2 on the x-axis?
A
On a coordinate plane, a parabola opens up. It goes through (negative 6, 3), has a vertex of (negative 1.5 negative 3.75), and goes through (3.2, 4).
B
On a coordinate plane, a parabola opens up. It goes through (negative 5.5, 4), has a vertex of (negative 1, negative 3.2), and goes through (3.5, 4).
C
On a coordinate plane, a parabola opens up. It goes through (negative 1, 4), has a vertex of (2.5, 0.25), and goes through (5.8, 4).
D
On a coordinate plane, a parabola opens up. It goes through (negative 3.4, 4), has a vertex of (1.5, negative 3.75), and goes through (6, 3).
7
When the polynomial is written in standard form, what are the values of the leading coefficient and the constant?5x + 2 – 3x2
A
The leading coefficient is 5, and the constant is 2.B
The leading coefficient is 2, and the constant is 5.C
The leading coefficient is –3, and the constant is 2.D
The leading coefficient is 2, and the constant is –3.
9
What is f(−3) for the function f(a)=−2a2−5a+4?
A
−29B
−23C
1D
3710
What possible changes can Martha make to correct her homework assignment? Select two options.
A
The first term, 5x3, can be eliminated.B
The exponent on the first term, 5x3, can be changed to a 2 and then combined with the second term, 2x2.C
The exponent on the second term, 2x2, can be changed to a 3 and then combined with the first term, 5x3.D
The constant, –3, can be changed to a variable.E
The 7x can be eliminated.Did you find these answers helpful?
Verified answers available
TRY EDGENUITY HACKS
- Auto Complete Exams
- Auto Complete Assignments
- Skip Videos Instantly
50,000+ students using this