Add the following:
28 + 99
127
70 − 5 × 9
25
Solve for v.
v − 7 = 6
v = ??
v = 13
Identify the following symbol notation: <
Less than
What is Algebra?
Algebra is a branch of math that uses the basic operations.
Algebra is a branch of math that involves solving for unknowns or variables (ie. represented by letters).
Compute the following:
-45 + 32
-13
27 ÷ 3 − 3
6
Solve for x.
x − 7 = 13
x = ??
x = 20
Verbally, what is the expression: x ≥ 3
"x is greater than or equal to 3"
What is a variable?
A variable is a symbol for a value we do not know yet. It must be found by solving for it!
Subtract the following:
33 - 26
7
23 × 32
72
Solve for n.
n + 16 = 9
n = ??
n = -7
Solve for a.
a - 17 > -16
A. a > 1
B. a < 1
C. a >= 1
D. a <= 1
A. a > 1
The following definition is for what word:
"Mathematical expression where the sides are not equal to one another"
Inequality
Compute the following:
11 x 12
132
44 × 5 ÷ (9 + 11)
11
Solve for b.
b/2 = 2.7
b = ??
b = 5.4
Solve for x.
-3x > 3
A. x > -1
B. x < 1
C. x < -1
D. x > 1
C. x < -1
The following definition is for what word:
"When we have two or more equations that work together"
System of Equations
Compute the following:
108 ÷ 4
13
84 ÷ 4 × 6 − 114
12
Solve for b.
14b = −56
b = ??
b = -4
-b - 2 > 8
*FLIP SIGN IF MULTIPLY/DIVIDE BY NEGATIVE #*
b < -10
Define slope.
Slope is the steepness of a line.
Slope is rise/run, or a rate of change.
Slope is "m" in slope-intercept form.