Quiz about Solving Quadratic Equations Review

Question 1

What is the form of the function:

$$y=2x^2+3x+2$$

Accepted Answer

standard

Answer

vertex

Question 2

What is the form of the function:

$$y=2(x+3)^2-10$$

Accepted Answer

vertex

Answer

standard

Answer

factored

Question 3

What is the form of the function:

$$y=-(x+3)(x-8)$$

Accepted Answer

factored

Answer

standard

Answer

vertex

Question 4

What formula will find the x-coordinate (h) of the vertex (h,k) for standard form?

Accepted Answer

$$x=\frac{−b}{2a}$$

Answer

$$x=\left(\frac{b}{2}\right)^2$$

Question 5

What is the value of C that would complete the square: $$x^2-4x+C$$

Accepted Answer

4

Answer

16

Question 6

What is the a-value: $$y=2x^2+5x+2$$

Accepted Answer

2

Answer

5

Question 7

What type of polynomial is always prime (cannot be factored)?

Accepted Answer

A binomial sum of squares

Answer

A trinomial

Answer

a polynomial

Question 8

What method would you use to solve the equation: y = (x + 3)(2x + 1)?

Accepted Answer

Zero Product Property

Answer

Complete the Square

Question 9

What method should you use to solve the equation: $$y=4x^2+10$$

Accepted Answer

Square Roots Method

Answer

Quadratic Formula

Question 10

What method should you use to solve the equation: $$y=x^2+10x+3$$

Accepted Answer

Complete the Square

Answer

Square Roots Method

Question 11

The discriminant is 24. How many solutions are there?

Accepted Answer

2

Answer

1

Answer

0

Question 12

The discriminant is -10. How many solutions are there?

Accepted Answer

0

Answer

2

Answer

1

Question 13

The discriminant is 0. How many solutions are there?

Accepted Answer

1

Answer

2

Answer

0

Question 14

How do you find any x-intercept?

Accepted Answer

Substitute 0 for y

Answer

Substitute 0 for x

Question 15

How do you find the y-intercept?

Accepted Answer

substitute 0 for x

Answer

substitute 0 for y

Question 16

What is the quadratic equation?

Accepted Answer

$$x=\frac{−b\pm\sqrt[]{b^2−4ac}}{2a}$$

Answer

$$x=\frac{−b\sqrt[]{b^2−4ac}}{2a}$$

Answer

$$x=\frac{b\pm\sqrt[]{b^2−4ac}}{2a}$$

Answer

$$x=\frac{−b+\sqrt[]{b−4ac}}{2a}$$

Question 17

WHAT SHOULD YOU DO NEXT?

$$2x^2+8=10$$

Accepted Answer

B. Isolate $$2x^2$$ .

Answer

A. Divide both sides by 2.

Answer

C. Square root both sides.

Question 18

What should you do next?

$$(x+4)^2=25$$

Accepted Answer

C. Square root both sides.

Answer

A. Distribute the square.

Answer

B. FOIL

Question 19

What should you do next?

$$x^2+5x+4=0$$

Accepted Answer

C. Factor the trinomial.

Answer

A. Square root both sides.

Answer

B. Subtract 4 from both sides.

Question 20

What is the value(s) of x?

$$x^2-2x-15=0$$

There's more than 1 correct answer.

Accepted Answer

-3

Accepted Answer

5

Answer

3

Answer

-5

Question 21

$$6x^2+2x+1=0$$

Accepted Answer

No real solution

Answer

$$x=\frac{-\ \sqrt[]{20}}{6}$$

Answer

$$\frac{-1\pm2\ \sqrt[]{5}}{6}$$

Answer

$$\frac{-1\pm\ \sqrt[]{5}}{6}$$

Solving Quadratic Equations Review

23 questions

What formula will find the x-coordinate (h) of the vertex (h,k) for standard form?

What type of polynomial is always prime (cannot be factored)?

What method would you use to solve the equation: y = (x + 3)(2x + 1)?

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