Quiz about Intro Equations with Two Variables

Question 1

Select all equations that are represented in this diagram.

Accepted Answer

Option A is correct

Accepted Answer

Option C is correct

Answer

B.

Answer

D.

Answer

E.

Question 2

In the equation 2x + 3y = 19, what is/are the variable(s)? Choose the best answer.

Accepted Answer

Both x and y are variables

Answer

x

Answer

y

Answer

=

Question 3

What branch of mathematics deals with equations with variables?

Accepted Answer

Algebra

Answer

Geometry

Answer

Calculus

Answer

Physics

Question 4

In the equation 2x + 3y = 19, what is the constant?

Accepted Answer

19

Answer

y

Answer

x

Answer

2

Question 5

What is the first step in solving the equation 2y - 11 = 25

Accepted Answer

Add 11 to 25

Answer

Subtract 11 from 25

Answer

Divide 25 by 2

Answer

Multiply 25 by 2

Question 6

How do we figure out the value of a variable?

Accepted Answer

Isolate the variable on one side of the equals sign.

Answer

Add up all the numbers in the equation.

Answer

Multiply the variable by itself.

Answer

A variable has no set value.

Question 7

A solution of a System of Linear Equations is a (n)

Accepted Answer

Ordered Pair

Answer

Right Answer

Answer

Variable

Answer

Number

Question 8

What does the solution of a System of Linear Equations represent?

Accepted Answer

Point of Intersection of the graphs

Answer

The Difference between the Slopes

Answer

The Product after using Inverse Operations

Answer

The Right Answer

Question 9

How do you check to see if an Ordered Pair is a solution to a System of Linear Equations?

Accepted Answer

Plug in the x-value and y-value to see if each equation works

Answer

Take a random guess

Answer

Solve each equation for x and then use Inverse Operations

Answer

Multiply the Slope of each line by the Constant of Proportionality

Question 10

The Ordered Pair (5,45) is a solution to which System of Linear Equations?

Accepted Answer

$$y=10x-5$$

Answer

$$y=2x-10$$

Answer

$$y=7x-9$$

Answer

$$y=12x-2$$

Question 11

A System of Linear Equations has to have

Accepted Answer

2 or more Linear Equations

Accepted Answer

with the same variables

Answer

At least 1 Linear Equations

Answer

with any variables

Question 12

Is (4, 5) a solution to the system of equations?
4x+y=21
-3x-6y=10

Accepted Answer

No, it only satisfies the first equation, and fails to satisfy the second.

Answer

Yes, it is a solution to the system of equations

Answer

No, it only satisfies the second equation, and fails to satisfy the first.

Answer

No, it fails to satisfy both equations

Question 13

Is (-2,7) a solution to the system of equations?
y=4x+15
-3x+5y=41

Accepted Answer

Yes, it is a solution to the system of equations

Answer

No, it only satisfies the first equation, and fails to satisfy the second.

Answer

No, it only satisfies the second equation, and fails to satisfy the first.

Answer

No, it fails to satisfy both equations

Question 14

Is (0, 16) a solution to the system of equations?
-3x=4y+2
2y=4x+32

Accepted Answer

No, it only satisfies the second equation, and fails to satisfy the first.

Answer

Yes, it is a solution to the system of equations

Answer

No, it only satisfies the first equation, and fails to satisfy the second.

Answer

No, it fails to satisfy both equations

Question 15

5p + 4h - 2
Which are the variables?

Accepted Answer

p, h

Answer

5p, 4h, 2

Answer

2

Answer

5, 4

Question 16

What are the variables in the following expression?

Accepted Answer

z, x and y

Answer

3, 4, 1 and 7

Answer

+ and -

Answer

15

Question 17

What are the variables in 3x + y

Accepted Answer

x,y

Answer

3x

Answer

x

Answer

y

Intro Equations with Two Variables

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