Real Numbers
Terminate or Repeat
How do you know a system of equations will have no solution?
Same slope, different y-intercept.
3=5
How do you know if a set of points is a function from a table?
No repeating x-values
What does congruent mean?
Same shape, same size
What is the rule when multiplying exponents with the same base?
Add the exponents
Really small numbers have __________ exponents.
Negative
What do you do if you want to determine when do expressions will be the same?
Set the equal to each other.
How do you know if a set of points is a function from a graph?
Pencil test (does not go through more than one point in a vertical line)
What is the only transformation that changes size?
Dilation
What is the base shape of a cylinder?
Circle
How do you type square root into a calculator?
2nd x2 #
How do you know if a function is linear? (2 things)
Straight line
Constant rate of change
How do you find the initial value from a table?
Find the y-value when x=0
180
How do you type cube root into a calculator?
3 2nd ^ #
What is the exponent rule for power to power?
Multiply exponents
Everything is the same
3=3
How do you find the rate of change from a table?
change in y / change in x
If you see a right triangle, what should you always think about using?
Pythagorean Theorem
Anything to the power of 0 =
1
You must get the exponents the same when doing these two operations in scientific notation.
Addition and Subtraction
Slope - Constant rate of change, m, change in y/change in x, y-y/x-x, rise/run
y-intercept - Initial value, starting amount, b
False (linear means straight line)
Add up to 180
Supplementary
How do you know if a line is a good line of best fit?
Shows the trend.
Has about half of the points above the line and about half of the points below the line