Topic 8 Review

Quiz by Ms. Ball

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29 questions
• Q1

What is the parent function of a quadratic?

$y=x^2+x+1$

$y=x$

$y=x^2$

$y=mx+b$

30s
• Q2

Where is the vertex on the quadratic parent function?

x = 0

(1,1)

y = 0

(0,0)

30s
• Q3
30s
• Q4

Write the equation, in vertex form of a quadratic that has been reflected over the x-axis, translated left one and up two.

$y=\left\left(-x+1\right\right)^2+2$

$y=-\left\left(x+1\right\right)^2+2$

$y=\left\left(x+2\right\right)^2-1$

$y=-\left\left(x-1\right\right)^2+2$

45s
• Q5
45s
• Q6

Write an equation for the pictured graph:

$y=\left\left(x-3\right\right)^2+2$

$y=-\left\left(x+3\right\right)^2+2$

$y=-\left\left(x-3\right\right)^2+2$

$y=\left\left(-x-3\right\right)^2+2$

60s
• Q7

What is the axis of symmetry on the pictured graph?

x = 3

3

y = 3

45s
• Q8
120s
• Q9
60s
• Q10

Over what interval is f(x) decreasing?

$x\epsilon\left\left(-\infty,2\right\right]$

$x\epsilon\left\left[2,\infty\right\right)$

$x\epsilon\left\left(-\infty,2\right\right)$

$x\epsilon\left\left(2,\infty\right\right)$

45s
• Q11

What is the domain of f(x)?

$x\epsilon\left\left[2,\infty\right\right)$

$x\epsilon\left\left(-\infty,\infty\right\right)$

$f\left\left(x\right\right)\epsilon\left\left[2,\infty\right\right)$

$f\left\left(x\right\right)\epsilon\left\left(-\infty,\infty\right\right)$

30s
• Q12

An a value that is between 0 and 1 does what to the graph of a quadratic?

Widens it

Reflects it over the x-axis

Narrows it

30s
• Q13

Based on the shape of the graph, which value of a makes the most sense?

2

6

1/4

1/2

30s
• Q14

What is the standard form of a quadratic?

$Ax+By=C$

$y=ax^2+bx+c$

$y=a\left\left(x-h\right\right)^2+k$

30s
• Q15
120s

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