8th Grade Math
Solve: 3 + a = 10
a = 7
A move that undoes what was done by the previous operation
Inverse Operation
Slope intercept form of a linear equation.
y=mx + b
True or false: 9 is a rational number.
True
Solve: 6 = y - 3
y = 9
A number that shows repeated multiplication.
Exponent
The point where the line crosses the y-axis.
y-intercept
This symbol
pi
is called...
Solve: 4 + 2c = 8
c = 2
A set of disconnected data points plotted on a coordinate plane. It allows us to investigate connections between two variables.
Scatterplot
The measure of a line's steepness
slope
True or false: This is a rational number
square root 2 34
What is false.
Solve: -3(x+5) = 2x-5
x=-2
Decimals that go on forever, but don't repeat.
irrational number
y=2/5x+4 start by...
Plotting the y-intercept at (0,4)
Numbers that include radicals that are NOT perfect squares...and pi
What are irrational numbers?
Solve the system:
x+y = -5
12-3x=2y
x = 22
y = -27
A number that can be written as a fraction.
rational number
The greater the slope, the ______ the line goes upwards.
Steeper
Find the slope of the line passing through the following points: (-4, 0) and (-3, -2).
What is -2.
True or false: A line where the y values increase as the y values decrease has a positive slope.
False