Abeka 9th Grade Algebra 1 Test 1
How many terms are in the expression 3x+5a/2y?
B. 2
In the expression 6x² + 5, which of the following correctly identifies the 6?
B. coefficient
What type of number is √23?
B. irrational
What is the opposite of 6?
C. -6
In the expression 2y − 7z³, which of the following is an exponent?
C. 3
The circumference C of a circle is equal to the product of π and the diameter d.
C=πd
Which notation best represents the relationship between the two numbers plotted on the number line below?
D. -1 < 5
Which of the following is true for multiplying two signed numbers with opposite signs?
D. The product is negative.
The gross profit GP of an item equals the selling price p minus the cost of 2 dollars for producing the item.
GP=p-2
The perimeter of a rectangle is twice the sum of its length l and width w.
P=2(l+w) OR P=2l+2w
a number's distance from zero
absolute value
x + (y + z ) = (x + y ) + z
associative property
r (s + t ) = (s + t )r
commutative property
(a + b )c = ac + bc
distributive property
3/5(2/5)=3/5
identity property
3x + 0 = 3x
identity property
The length l of a rectangle is equal to its area A divided by its width w.
l=A/w
quantities combined by only addition or subtraction
terms
an unknown value
variable
natural numbers and zero
whole numbers
The sum of x and 3 is divided by 2
x + 3/2 OR (x + 3) ÷ 2
-3²/2³+1
-1
a + [a + b − a − (2a − b )]
-a+2b
If a = -2, find the value of the expression | 2a + 5 |.
1
Half of g multiplied by t squared is equal to d
1/2gt²=d
5/12 + 1/12 − 1/4
1/4
A piece of yarn 29 inches long is cut into two parts. If one of the resulting pieces is m inches long, represent the length of the other piece.
29-m
Phil drove for 5 hours at 65 miles per hour. How far did he drive if d = rt ?
325mi.
If x = -3 and y = 5, find the value of the expression 2x² + 4y − 5.
33
8mn + 10 − 2(3mn − 1) + 2mn − 5 + 8
4mn+15
Find the value of A in the formula A = 1/2h (a + b ) when h = 6 in., a = 12 in., and b = 8 in.
60sq.in.
4 + 3² ÷ (-1)(4)(-2) − 1
75
3x + 2y + 5x − y
8x+y
In the expression [1 + 7 · (2 − 9)] ÷ 3 + 12, which of the following operations is done first?
A. 2 − 9
