Additive Relationship y = x + a
In an additive relationship, two quantities can be expressed as related to each other through addition.
It can be written as y = x + a, where y is related to x through the addition of a constant, “a”. The value for a may be positive or negative.
Example: firefighters use special clothing and equipment called “turnout gear.” The extra weight is approximately 60 pounds. What is the total weight of both the firefighter and his equipment in pounds?
Situation: Total weight will always be 60 pounds more than the firefighter weight without equipment
This table shows an additive relationship between x and y, represented with y = x + 60
From the table, we place points in a coordinate plane using the ordered pairs (x,y)}
In an additive relationship,
y = x+a;
The set of points will lie in a linear pattern and will not contain the ordered pair (0,0)
Multiplicative Relationship y = ax
A multiplicative relationship is a relationship where two quantities can be expressed as multiples of each other. Its equation is y = ax, where is to the ratio of y to x.
Example Gallons to quarts’ conversion
The multiplicative relationship, y = ax, is represented graphically by placing points in the coordinate plane where the independent variable is the x-value and the dependent variable is the y-value.
The set of points will lie in a linear pattern and will contain the ordered pair (0,0)
Converting Units of Measure (metric and customary)
When you don’t know your times tables, it slows down your progress in math. Practice multiplication tables until you master them
This mini drill provides students with reinforced practice so that ALL students can learn and practice until the answers are automatic.
(the building blocks and rules of math)
Show Your Work activities:
The following online activities are the perfect way to brush up your basic math skills.
Please use Google Chrome or Safari (they are not working properly on MS Explorer yet)
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Special Ed Activities
123.45 ≡≡≡≡ Decimals ≡≡≡≡ 6.789
- DE9 Convert fraction to decimal
- DE10 Convert fraction or mixed number to decimal
- DE11 Convert percentage to decimal
- DE12 Convert percentage to decimal
- DE15 Compare decimals
- DE16 Order from least to greatest and greatest to least
- DE17 Order from least to greatest and greatest to least
- DE18 Order from least to greatest and greatest to least
- DE19 Order from least to greatest and greatest to least
- DE20 Order from least to greatest and greatest to least
- DE23 Order from least to greatest and greatest to least <<
- DE24 Order from least to greatest and greatest to least << Extra Points
- FR50 Converting fractions, decimals and percents
- FR51 Converting fractions, decimals and percents
- FR52 Converting fractions, decimals and percents
- FR53 Converting fractions, decimals and percents
Fractions Activity (V 1.4)