Math Functions
Unit 1
Unit 2
100
What math function do you use to find the sum?
Addition
100
What is a unit rate?
A rate with a denominator of one
100
What is the point (0,0) called?
The origin
200
What math function do you use to find the difference?
Subtraction
200
What does a scale factor of less than one produce?
A reduction
200
Define proportion - use words or give an example
An equation stating two ratios are equivalent
a/b = c/d
300
What is the difference between an expression and an equation? Give an example
An equation is a mathematical sentence that contains an equal sign between two expressions
Expression: 5 + 7
Equation 5 + 7 = 12
300
What is the first step to dividing mixed numbers?
ex:
(1 1/3) div (2 5/7)
Convert the mixed numbers to improper fractions
300
What is constant of proportionality?
The ratio between two directly proportional quantities
The unit rate
(y/x)
400
What does it mean to simplify a fraction?
Answer in words or give an example
To reduce a fraction by dividing the numerator & denominator by their GCF
400
What is an equivalent ratio?
Use words or give an example.
A comparison of two quantities with the same value
3/4 = 12/16
400
What two things have to be true for a graph to be proportional?
1. Straight line
2. Goes through the origin
500
50 miles / hour
What word do we use for the "/" symbol?
per
500
What are corresponding sides? Use words or give an example.
Sides that are in the same location on two figures
500
Write the equation of a line with a COP of 4
y = 4x