What is the definition of the x-intercept?

the point where the line crosses the x-axis

a statement that two mathematical expressions are equal

What is an algebraic expression?

Mathematical phrase,ordinary numbers,variables,and operators

What is the Commutative Property?

Numbers can be added in any order and the sum remains the same

What is the definition of a variable?

A symbol for a number that we don't know yet.

What is the definition of the y-intercept?

the point where the line crosses the y-axis

What is the definition of a coefficient?

The number in front of the variable that is a factor.

What is the identity property?

When you multipy any number by 1, the product is that number

What is the definition of a slope?

A rising or falling surface, one end is higher.

The formula for distance between 2 points is...

√((𝒙2-𝒙1)2+(𝒚2-𝒚1)2)

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8th Grade general review

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Questions 35

Answers

1
What is the definition of the x-intercept?
the point where the line crosses the y-axis
The lowest point on the line
the point where the line crosses the x-axis
The point on the line where x and y are 1
2
Foil the following problem
X2+7x+12
X2+12x+7
2x2 + 12x
X+4
3
What is the formula for Pythagorean Theorem
a + b = c
a2 + b2 = c2
a2 + b2 + c2
a + b + c
4
What is an equation?
a value of a variable that makes an equation true
a statement that two mathematical expressions are equal
operations that undo each other
a mathematical sentence that compares two expressions
5
What is the formula for Sine?
Adjacent/Hypotenuse
Opposite/Adjacent
Opposite/Hypotenuse
Opposite/ Tangent
6
What is an algebraic expression?
algebra
math
Mathematical phrase,ordinary numbers,variables,and operators
x,y
7
what law is this
distributive law
commutative law
corresponding law
associative law
8
Solve Using FOIL. (3x-7)(5x+6)
15x2-17x-42
15x2+17x+42
15x2-17-42
15x-17x-42
9
What is the Commutative Property?
You do nothing to the numbers
When you keep the numbers the same
You have a zero in the problem
Numbers can be added in any order and the sum remains the same
10
What is the linear form for this equation called?
Standard-Linear Form
General-Linear Form
Point-Slope Form
Slope-Intercept Form
11
What is the correct algebraic expression of the distributive property?
a(b+c) = ab + ac
a*b*c = c*b*a
a+b+c = c+b+a
a(b+c) = a(c+b)
12
What does FOIL stand for?
First, Outer, Inner, Last
Fractions, Over, Integers, Last
Fraction, One, Inequalities, Last
Flip, Over, Invert, Last
13
What is the correct formula for the difference of two squares?
(a-b)2 = a2 -2ab + b2
(a+b)(a-b) = a2-b2
(a+b)2 = a2+2ab+b2
14
What is the formula for slope when given 2 points? (x_1,y₁) (x₂,y₂)
m = x2 - x1 / y2 - y1
m = y2 - y1 / x2 - x1
there is no formula for slope?
y=mx + b
15
What is the definition of a variable?
mathematical phrase that can contain ordinary numbers
not consistent or having a fixed pattern
A symbol for a number that we don't know yet.
When rates are expressed as a quantity of one
16
What is the slope formula?
x-x/y-y
y-y/x-x
y + 0 = x
Ax + By = C
17
Simplify using the Laws of Exponents
a10 ⋅ b8
a ⋅ b
a25 ⋅ b15
a5 ⋅ b3
18
What is AxAxAxAxBxB In Index Notation
AxB6
A4 B2
(AB)6
19
use the laws of exponents
2y2/x
2/xy2
2x/y2
2xy2
20
What is the definition of the y-intercept?
The lowest point on the line
the point where the line crosses the y-axis
the point where the line crosses the x-axis
The point on the line where x and y are 1
21
What is the definition of a coefficient?
Numbers, variables, and products separated by sub. and add.
Numbers that stand alone.
The number in front of the variable that is a factor.
22
Simplify using the Laws of Exponents
-18m10
-18m24
-3m24
18m10
23
What is the identity property?
When you multipy any number by 1, the product is that number
When you add one to a number
When you identify the right number
When someone asks what your name is
24
what is the associative property
22x1=22
12x31=342
13x0=0
3x(4x2)=(3x4)x2
25
What is the correct formula for a perfect square trinomial?
(a+b)2 = a2 + b2
(a+b)2 = a2+2ab+b2
26
What is the formula for Tangent?
Opposite/Adjacent
Opposite/ Tangent
Opposite/Hypotenuse
Adjacent/Hypotenuse
27
Which of the following is a perfect square trinomial?
x2 + 4x + 9
x2 + 6x + 9
x2 + 6x + 12
x2 + 12x + 9
28
what is the formula for cos?
hyp/adj
adj/hyp
opp/tan
opp/hyp
29
What is the definition of a slope?
A line that determines how high your tables are.
A line that is never straight.
A rising or falling surface, one end is higher.
A line occasionally found on a graph.
30
What is the slope intercept form of a linear equation?
E=mc^2
y=x+c
Ax+By=C
y=mx+b
31
The formula for distance between 2 points is...
√((𝒙1-𝒙2)2+(𝒚2-𝒚1)2)
(𝒙2-𝒙1)2+(𝒚2-𝒚1)2
√((𝒙2-𝒙1)2+(𝒚2-𝒚1)2)
√((𝒙2-𝒙1)2+(𝒚1-𝒚2)2)
32
What is the correct definition of a 'constant'?
A number on its own
A term or combination of terms & operators
A symbol for an unknown value
A number that is multiplied by a variable
33
Simplify using the Laws of Exponents.
10w4
24x6
14w4
6w4
34
what law is this
associative law
distributive law
corresponding law
commutative law
35
What form is the equation in?
Standard Form
None of the Above
Slope-Intercept Form
Point-Slope Form

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