Topic 3/4 Assessment

Match the following

• equivalent expression

• For the expression 4x+7, the ___ is 4.

• algebraic expression

• For the expression 4x+7, the ___ is 7.

• constant

• The expression x+2 is a(n)____ of 2+x.

• like terms

• A(n)___contains at least one variable.

• coefficient

• are terms with the same variables raised to the same exponents.

Howard buys 5 pounds of apples at $2.50 per pound and 3 pounds of grapes at $1.50 per pound. What is the total cost of the fruit?

• $20.00
• $10.00
• $15.00
• $17.00

Organize these options into the right categories for 12p+47 and m+7.5

Groups:

(a) variable

,

(b) coefficient

,

(c) constant

• m

• 47

• p

• 12

• 7.5

• 1

Barbara has b bags that each contain 4 pounds of rice. She has another bag that has 3 pounds of rice. Write an algebraic expression that shows how many pounds of rice Barbara has.

Mathematical Equivalence

ON

Evaluate the expression 5(m-2)+10w when m=8.4 and w=1.25.

• 44.5
• 40.5
• 54.5
• -44.5

Evaluate the expression 6x+(2/3)-4y+(1/2) when x=(3/4) and y=(1/6)

• 3
• 5
• 7
• -1

Evaluate the expression 4x-y when x=-1 and y=-5.

• 1
• 0
• 21
• -9

Which expression are equivalent to 8(2x+6)? Select all that apply.

• 16x + 36
• 4x + 12
• 4(4x + 12)

• 16x + 48

For the expression 6⁴ , the ​ (a)   is 6 and the ​ (b)   ​ is 4.

• base
• exponent
• factor tree

Select all the expressions equivalent to 2*2*2*2*2*2*2*2*2

• 512
• 2⁹

• 9 squared

• 2⁵x2⁴