Grade 7 Mathematics Quiz

“The sum of a number and nine”

If the given verbal phrase can be translated into algebraic expression, what is an algebraic expression?

• A mathematical phrase containing numbers, variables, and operation.

• A mathematical phrase containing letters or symbols representing an unknown value.

• A mathematical phrase containing the highest power of the variable and exponents.

• A mathematical phrase containing one or more terms with no negative powers.

“The sum of a number and nine”

In the given verbal phrase, which of the following terms would represent the words 'a number'?

• Variable

• Constant

• Degree

• coefficient

“The sum of a number and nine”

Examine the given verbal expression. How many variable/s is/are present in the expression?

• 4

• 3

• 2

• 1

“three more than the product of a number y and 4”

Which algebraic expression matches the phrase 'the product of a number y and 4'?

• 4y

• y4

• both a and b

• none of these

“three more than the product of a number y and 4”

A teacher asks students to write the algebraic expression of this phrase. Which of the following expressions is correct?

• 4y+3

• 3+4y

• y∙4+3

• All of the above

“three more than the product of a number y and 4”

What type of algebraic express (according to the number of terms) is illustrated in the given phrase?

• Monomial

• Binomial

• Trinomial

• Polynomial

5x − y

What is the value of the expression if x = 2 and y = 3?

• -7

• 7

• 10

• -10

5x − y

What is the value of the expression when x = 1 and y = -5 if the result is raised to the power of 2?

• 0

• -10

• 100

• -100

5x − y

A student evaluates this expression where x = 4 and y = 6. Which of the following calculations is correct?

• 5(4) - 6 = 20 - 6 = 14

• 5(4) − 6 = 20 - 6 = 16

• 5(6) - 6 = 20 - 4 = 16

• 5(6) - 6 = 20 - 4 = 24

If x = 2, y = 1, and z = 0 what part of the expression contributes the most to the total value?

• 3x2

• 4y

• z

• none of these