Parts of an expression

Multiple Choice

A letter that represents a number is called a _____.

• variable
• coefficient
• constant
• term

Multiple Choice

Determine the variable in the expression.

$$7^2+x-5$$  

• 7

• 2

• x

• 5

Multiple Choice

What is the coefficient in the expression: 94a+2?

• 2
• 4
• 94
• 94a

Multiple Choice

What is the coefficient in this expression?
3x+4-2

• x
• 4
• 3x
• 3

Multiple Choice

What is the coefficient of the x term in this expression? 3x²+4x-2

• x
• 4
• 4x

• 3

Multiple Choice

A number with no variable attached is called a  _____.

• coefficient
• constant
• variable
• term

Multiple Choice

Which term contains a constant? m + 3n + p + 3

• m
• 3n
• p
• 3

Multiple Choice

What is the constant in this expression? 3x+4-2

• x
• -2

• 3x
• 2

​Interpret Parts of an expression:

​

The area of a triangle can be found using the following formula

1/2 l w​

​

The expression 1/2(2x)(3x) represents a triangle with:

a length of

​

a width of​

Multiple Choice

The expression s² is used to calculate the area of a square, where s is the side length of the square. 

The expression (8x)² represents the area of a square with a side length of...

• 8

• 8x

• 4

• x

Multiple Choice

The expression s² is used to calculate the area of a square, where s is the side length of the square. 

The expression (4x)² represents the area of a square with a side length of...

• 8

• 8

• 4x

• x

Multiple Choice

The expression πr² is used to calculate the area of a circle, where r is the radius of the circle.

What does the expression π (3x)² represent?

• The area of a circle with a radius of 3

• The area of a circle with a radius of 9

• The area of a circle with a radius of 6x

• The area of a circle with a radius of 3x