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Quiz 1 "Illustrates Quadratic Equation"

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

Which of the following is a quadratic equation?

a)

 (r5)r=r2+3r+10\left(r-5\right)r=r^2+3r+10  

b)

 2(x+3)(x3)=(x1)(x+4)2\left(x+3\right)\left(x-3\right)=\left(x-1\right)\left(x+4\right)  

c)

 3t5=03t-5=0  

d)

 2w2732w^2-7\ge3  

2.

In the standard form  ax2+bx+c=0ax^2+bx+c=0  , which of these parameters must not be equal to zero?

a)

x

b)

b

c)

c

d)

a

3.

Which is the quadratic term in the equation  3x2+7x4=03x^2+7x-4=0  ?

a)

 x2x^2  

b)

 3x23x^2  

c)

 4-4  

d)

 +7x+7x  

4.

Which of these equations is not quadratic?

a)

(x+2)2=x2\left(x+2\right)^2=x^2

b)

8=(3x+7)2-8=\left(3x+7\right)^2

c)

2x26=3x2x^2-6=3x

d)

x(x+3)=6x\left(x+3\right)=6

5.

The linear term in the equation  15+4x22x=015+4x^2-2x=0  is?

a)

 1515  

b)

 4x24x^2  

c)

 2x-2x  

d)

 00  

6.

The standard form of the equation  2x(3x+2)=52x\left(3x+2\right)=5 .

a)

 6x2+2x+5=06x^2+2x+5=0  

b)

 6x2+2x5=06x^2+2x-5=0  

c)

 6x2+4x+5=06x^2+4x+5=0  

d)

 6x2+4x5=06x^2+4x-5=0  

7.

What is the constant term if the equation  (2x3)2=9\left(2x-3\right)^2=9  is written in standard form?

a)

 44  

b)

 6-6  

c)

 99  

d)

 00  

8.

An equation in one variable that is a mathematical sentence of degree 2 that can be written in the standard form  ax2+bx+c=0,ax^2+bx+c=0, where a, b, and c are real numbers and  a0.a\ne0.  

a)

Cubic Equation

b)

Linear Equation

c)

Quadratic Equation

d)

Quartic Equation

9.

What is the standard form of  (x+3)(x4)=0?\left(x+3\right)\left(x-4\right)=0?  

a)

 x2+x12=0x^2+x-12=0  

b)

 x2x12=0x^2-x-12=0  

c)

 x27x12=0x^2-7x-12=0  

d)

 x2+7x12=0x^2+7x-12=0  

10.

What is the value of  cc  in the quadratic equation  3m2+7m+8=15?3m^2+7m+8=15?  

a)

 33  

b)

 77  

c)

 7-7  

d)

 88  

11.

In  x25x+8=0,x^2-5x+8=0,  what is the constant term?

a)

 x2x^2  

b)

 5x-5x  

c)

 88  

d)

 00  

12.

Which of the following quadratic equations written in standard form?

a)

x25x+10=0x^2-5x+10=0

b)

2t27t=122t^2-7t=12

c)

62x+3x2=06-2x+3x^2=0

d)

25r2=4r25-r^2=4r

13.

Given 9x+5x2=10; if a=5 then b=?

a)

4

b)

5

c)

9

d)

-10