Mathematics 7 Reviewer

It is a symbol that represents an unknown value.

• variable

• constant

• term

• coefficient

______ is a symbol with exactly one number or a fixed value in its replacement.

• variable

• constant

• term

• coefficient

Evaluate this expression: x + 10, when x = 5.

• 3

• 10

• 10

• 15

From the expression 5x² + 3x - 7, what are the numerical coefficients?

• 5 and -7

• 5 and 3

• 5 and 7

• 3 and -7

From the expression 5x² + 3x - 7, what do you call -7?

• variable

• literal coefficient

• numerical coefficient

• constant term

The expression 5x² + 3x - 7 is an example of what kind of polynomial according to number of terms?

• monomial

• binomial

• trinomial

• multinomial

The expression 5x² + 3x - 7 is _________ kind of polynomial according to its degree.

• cubic

• linear

• quadratic

• quintic

Translate into mathematical phrase: "The sum of a number and three."

• 3x

• x ÷ 3

• x + 3

• x - 3

What is the correct translation of 4x - 8 in verbal phrase?

• four times a number x minus eight

• the sum of four times a number and eight

• four times a number x increased by eight

• the product of four times a number and eight

In the given equation, 4x = 40, find the unknown value of the variable.

• 0

• -10

• 5

• 10