Algebra L9-5 Quiz v2
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Last updated about 2 years ago
6 questions
1
Which value of c completes the square in the expression x^{2}+6x+c?
Which value of c completes the square in the expression x^{2}+6x+c?
1
Use completing the square to determine which of the following gives solutions to 2x^{2}-8x-8=-6.
Use completing the square to determine which of the following gives solutions to 2x^{2}-8x-8=-6.
1
Solve x^{2}+10x+11=0 by completing the square. Identify all of the solutions.
Solve x^{2}+10x+11=0 by completing the square. Identify all of the solutions.
1
The procedure for completing the square is mostly the same as the procedure to convert a quadratic function from standard form into vertex form. Which is the vertex form of the function f(x)=4x^{2}+24x+33?
The procedure for completing the square is mostly the same as the procedure to convert a quadratic function from standard form into vertex form. Which is the vertex form of the function f(x)=4x^{2}+24x+33?
1
What is the vertex of the function f(x)=4x^{2}+24x+33?
Nota Bene: A vertex of a function is a point on the coordinate plane. If your answer is not a complete and accurate specification of such a point using conventional notation, you will not get full credit.
What is the vertex of the function f(x)=4x^{2}+24x+33?
Nota Bene: A vertex of a function is a point on the coordinate plane. If your answer is not a complete and accurate specification of such a point using conventional notation, you will not get full credit.
3
\color{blue}{\mathbb{Show. Your. Work.}} (you can do it on paper and hand it in).
The function h(t)=-3t^{2}+12t+8 models the height in meters, h(t), of a rocket t seconds after being launched from an 8-meter-high platform.
A) How many seconds does it take for the rocket to reach its maximum altitude?B) What is the rocket's maximum altitude?
\color{blue}{\mathbb{Show. Your. Work.}} (you can do it on paper and hand it in).
The function h(t)=-3t^{2}+12t+8 models the height in meters, h(t), of a rocket t seconds after being launched from an 8-meter-high platform.
A) How many seconds does it take for the rocket to reach its maximum altitude?
B) What is the rocket's maximum altitude?