Quadratic Functions: Standard Form Answers
The graph of which function will have a maximum and a y-intercept of 4?
([___], [___])
-4
when x –1for all real numbers of xfor no values of x
all real numbersall real numbers less than –1all negative real numbersall positive real numbers
all real numbersall real numbers less than –1all numbers less than or equal to 0all numbers greater than or equal to 0
Use the drop-down menus to describe the key aspects of the function f(x) = –x2 – 2x – 1.
([___], [___])
-3
The graph of the function f(x) = x2 + 8x + 12 is shown. Which statements describe the graph? Check all that apply.
The axis of symmetry for the function f(x) = –2x2 + 4x + 1 is the line x = 1. Where is the vertex of the function located?
Which functions have an axis of symmetry of x = –2? Check all that apply.f(x) = x2 + 4x + 3f(x) = x2 – 4x – 5f(x) = x2 + 6x + 2 f(x) = –2x2 – 8x + 1f(x) = –2x2 + 8x – 2
What is the vertex of the function f(x) = x2 + 3x + ?
Left-most x-intercept: ([___], 0)
-5
[___]
2
Which must be true of a quadratic function whose vertex is the same as its y-intercept?
Which error did Mathieu make?
minimum valuemaximum valuey-intercept
✔ –301.515
when x –1for all real numbers of xfor no values of x
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