Quiz about 2.1-2.3 College Math

Question 1

These two lines intersect at _____.

Accepted Answer

(4, -2)

Answer

(4, 2)

Answer

(-2, 4)

Answer

No solution

Question 2

Parallel Lines never intersect because...

Accepted Answer

they have the same slopes.

Answer

they have the same y-intercept.

Answer

they have different slopes.

Answer

they have different y-intercepts.

Question 3

If a system of equations has no solution, what does the graph look like?

Accepted Answer

parallel lines

Answer

intersecting lines

Answer

skew lines

Answer

intersecting lines

Question 4

When you graph the exact same equation twice,

Accepted Answer

you will have infinite solutions.

Answer

you will have no solution.

Answer

you will have one solution.

Answer

you will graph a giraffe.

Question 5

Question 5.

Accepted Answer

b

Answer

a

Answer

c

Answer

d

Question 6

Question 6.

Accepted Answer

d

Answer

a

Answer

b

Answer

c

Question 7

Question 7.

Accepted Answer

a

Answer

b

Answer

c

Answer

d

Question 8

What is the
slope-intercept form
of the equation
-8x+2y=4

Accepted Answer

y=4x+2

Answer

none

Answer

y=2-4x

Answer

y=4x-8y

Question 9

Solve the system of equations by graphing.

Accepted Answer

(-1, 4)

Answer

(1, 0)

Answer

No Solution

Answer

(0, 2)

Question 10

Solve this system of equations.
y = 2x + 1
y = 4x - 1

Accepted Answer

(1,3)

Answer

(-1,-3)

Answer

(-1,3)

Answer

(3,1)

Question 11

x - 3y = -13
4x + 2y = 4

Accepted Answer

(-1, 4)

Answer

(1, 4)

Answer

(-1, -4)

Answer

(1, -4)

Question 12

4x + 8y = 20
-4x + 2y = -30
Which variable will be eliminated?

Accepted Answer

The  x

Answer

The  y

Answer

The  z

Answer

The unknown

Question 13

Solve by elimination:
4x+4y=4

3x+4y=10

Accepted Answer

(-6,7)

Answer

(7,-6)

Answer

(6,7)

Answer

(7,6)

Question 14

Solve by elimination:
-x+2y=17

2x+2y=-10

Accepted Answer

(-9,4)

Answer

ARN

Answer

(-9,-4)

Answer

(9,-4)

Question 15

Solve by elimination
4x-6y= -6
-2x-12y= -12

Accepted Answer

(0,1)

Answer

(1,0)

Answer

(1,1)

Answer

(2,1)

Question 16

Solve by elimination
2x+9y= -7
6x-3y= 9

Accepted Answer

(1,-1)

Answer

(-1, -1)

Answer

(2,-1)

Answer

(1,1)

Question 17

Solve by elimination
-12x-10y= 0
6x+5y= -1

Accepted Answer

no solution

Answer

infinite solutions

Answer

(0,0)

Answer

(2,1)

Question 18

Factor x² + 6x -16

Accepted Answer

(x - 2)(x + 8)

Answer

(x + 2)(x - 8)

Answer

(x + 4) (x - 4)

Answer

(x - 4)(x - 4)

Question 19

Factor x² - 8x + 24

Accepted Answer

PRIME

Answer

(x - 12)(x + 2)

Answer

(x - 4)(x - 6)

Answer

(x - 8)(x + 3)

Question 20

What is the GCF of the trinomial?
3x²- 9x -120

Accepted Answer

3

Answer

2

Answer

6

Answer

9

Question 21

Factor
9x²-6x-8

Accepted Answer

(3x+2)(3x-4)

Answer

(3x+2)(3x+4)

Answer

(3x-2)(3x-4)

Answer

(x-1)(9x+8)

Question 22

Factor 4x²-9

Accepted Answer

(2x-3)(2x+3)

Answer

(4x-9)(4x+9)

Answer

2x-3

Answer

(2x-4.5)(2x+4.5)

Question 23

Factor 4x²-16

Accepted Answer

4(x-2)(x+2)

Answer

(2x-4)(2x+4)

Answer

(4x-4)(4x+4)

Answer

4(x-2)2

Question 24

Factor completely:
48x²y² - 75y²

Accepted Answer

3y²(4x - 5)(4x + 5)

Answer

3(4xy - 5y)(4xy + 5y)

Answer

3xy(4x - 5y)(4x + 5y)

Answer

3y²(16x² - 25)

Question 25

Factor completely:
x⁴-10x²+9

Accepted Answer

(x+3)(x-3)(x+1)(x-1)

Answer

(x-9)(x-1)

Answer

(x²-9)(x²-1)

Answer

(x-3)(x+3)(x²-1)

Question 26

Question 26.

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 27

Solve for x by factoring.

Accepted Answer

2, 6

Answer

-6, -2

Answer

-2, 6

Answer

-6, 2

2.1-2.3 College Math

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