Linear Equations
True or False:
Linear equations never contain exponents
True
What is the origin of a coordinate plane?
(0,0)
Inequalities are used to __________ quantities.
The last step to solving any mathematical equations is almost always to _______.
simplify
Any letter that represents an unknown value
variable
18+ 5y= 6x + 3 -2x
What is the next step in solving this equation?
Combine Like Terms!
The independent variable should always be graphed on the _____ axis.
X axis
A compound inequality includes how many inequalities?
Two or more
TRUE OR FALSE:
To find the x-intercept, set y = 1 and solve for x.
FALSE
A math phrase which includes operations but no = sign
expression
When an operation is performed on one side of a linear equation, what must happen to the other side?
The same operation.
x = -4
Will the line for this graph be vertical or horizontal?
vertical
A solution for a linear equality should always be given as a _______ _______.
ordered pair
What is the formula for slope?
M = (y2-y1)/(x2-x1)
A relation is only a function if....
... each input (x) has exactly one output (y)
What is the standard form of a linear equation?
Ax + By = C
Y > 3x + 5
Will the line of this graph be dashed or solid? How do you know?
Dashed
When solving inequalities, what happens to the inequality symbol when multiplying or dividing by a negative?
The inequality symbol flips
3x
what operation is taking place in the expression above?
Multiplication. 3 times X
The variable that is an output of a function and determined by the controlled variable.
Dependent variable.
Y = Mx + b
Identify the variables for slope and y-intercept
b = y-intercept
m = slope
True or False: When graphing a line for a linear equation, the line is only able to cross the x and y axis a maximum of 1 time each.
True
What is one value for X that would make this inequality TRUE?
6x -2 > 28
x is greater than or equal to 6
Solve for t:
2(5t - 1) = 3(t + 11)
t = 5
Estimating an unknown value based on known data is ___________.
Extrapolation