Quiz about Weekly Quadratics Jan 31st

Question 1

Find the zeros of this quadratic. (Solve for b.)

Accepted Answer

b = 4/5, b = -3

Answer

b = 4/5, b = 3

Answer

b = 4, b = -3

Answer

b = 1/5, b = 3

Question 2

Find the solutions. (Solve for b.)

Accepted Answer

-2, 4

Answer

-8

Answer

8, -8

Answer

2, -4

Question 3

What are the zeros?

Accepted Answer

x= 0 and x= 4

Answer

x= 0 and x= -4

Answer

y= 0

Answer

x= 2

Question 4

What is another word for zeros?

Accepted Answer

roots

Answer

y-intercepts

Answer

vertex

Answer

axis of symmetry

Question 5

Find the zeros of the equation:

(x+10)(x-2) = 0

Accepted Answer

-10 and 2

Answer

10 and 2

Answer

-2 and 10

Answer

-2 and -10

Question 6

Solve
2x² + 17x + 21 = 0

Accepted Answer

x=-7, ^-3/₂

Answer

x= ^-21/₂, -17

Answer

x= ²/₃, 16

Answer

x=15, -³/₇

Question 7

Solve by factoring: 2x²+ 7x = -6

Accepted Answer

x = -3/2 and x = -2

Answer

x= 3/2 and x = 2

Answer

x = 6 and x = 7

Answer

x = -6 and x = -7

Question 8

x² + 44 = -15x

Accepted Answer

{-11, -4}

Answer

{-8, 2}

Answer

{-7, 5}

Answer

{-11}

Question 9

What should you do first in solving this equation?
x² + 6x - 13 = 3

Accepted Answer

Make it equal 0 by subtracting 3 on each side

Answer

Get factored form

Answer

Write down: a=1, b=6, c=-13

Answer

Type it all in a calculator.

Question 10

Solve by factoring

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 11

Solve 3x² - 192 = 0

Accepted Answer

-8 or 8

Answer

-32 or 32

Answer

No Solution

Answer

-64 or 64

Question 12

Solve:

$$\left(x+3\right)\left(x+8\right)=0$$

Accepted Answer

$$x=-3$$

$$x=-8$$

Answer

$$x=-3$$

$$x=8$$

Answer

$$x=3$$

$$x=-8$$

Answer

$$x=3$$

$$x=8$$

Question 13

Solve:

$$x\left(x+7\right)=0$$

Accepted Answer

$$x=0$$

$$x=-7$$

Answer

$$x=1$$

$$x=-7$$

Answer

$$x=0$$

$$x=7$$

Answer

$$x=-1$$

$$x=-7$$

Question 14

Solve:

$$\left(3x-8\right)\left(x-3\right)=0$$

Accepted Answer

$$x=\frac{8}{3}\ and\ x=3$$

Answer

$$x=\frac{8}{3}\ and\ x=-3$$

Answer

$$x=-\frac{8}{3}\ and\ x=-3$$

Answer

$$x=\frac{3}{8}\ and\ x=3$$

Question 15

What is the name of this property?

Accepted Answer

Zero Product Property

Answer

Zero Exponent Property

Answer

Commutative Property

Answer

Zero Sum Property

Question 16

Solve:

$$x^2-11x+30=0$$

Accepted Answer

$$x=5\ and\ x=6$$

Answer

$$x=-8\ and\ x=-6$$

Answer

$$x=4\ and\ x=-6$$

Answer

$$x=-6\ and\ x=0$$

Question 17

What are the zeroes?

Accepted Answer

x= 0 and x= 4

Answer

x= 0 and x= -4

Answer

y= 0

Answer

x= 2 and x= -2

Question 18

The function $$f\left(x\right)=-x^2-4x$$ is graphed below. What are the zeros? Write in all 3 forms. Select all that apply.

Accepted Answer

The zeros are $$x=-4,\ x=0$$ , in set notation: $$\left\{-4,0\right\}$$ , in ordered pair form: $$(-4,0),\ (0,0)$$

Answer

The zeros are $$x=-5,\ x=3$$ , in set notation: $$\left\{5,-3\right\}$$ , in ordered pair form: $$\left(-5,\ 0\right),\ \left(3,\ 0\right)$$

Answer

The zeros are $$x=-3,x=1$$ and in set notation: $$\left\{3,-1\right\}$$ , in ordered pair form: $$\left(-3,0\right),\ \left(1,\ 0\right)$$

Answer

The zeros are x = 2, x = -2, and in set notation: $$\left\{2,\ 2\right\}$$ , in ordered pair form: $$\left(2,\ 0\right)\ \left(-2,\ 0\right)$$

Question 19

What are the zeros of the graph shown above?

Accepted Answer

2 and 6

Answer

4 and 2

Answer

6 and 9

Answer

5 and 1

Question 20

Which quadratic function is represented by the graph?

Accepted Answer

y = -2(x + 4)² + 5

Answer

y = 2(x - 4)² + 5

Answer

y = 2(x + 4)² + 5

Answer

y = -2(x - 4)² + 5

Question 21

Match the graph to the correct equation.

Accepted Answer

y = -x² - 2x + 3

Answer

y = 2x² + 4x - 2

Answer

y = -2x²+ 4x + 3

Answer

y = x²+ 2x + 3

Question 22

Which of these is true about the graph?

Accepted Answer

There are no solutions.

Answer

The y-intercept is $$10$$

Answer

The vertex is a maximum

Answer

The axis of symmetry is $$x=3$$

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics