# Algebra I

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1. linear function
y=ax+b where a and b are constant numbers.
2. direct variation
y=ax where a is a fixed number other than 0.
3. In direct variation, if x is doubled...
...so is y.
4. The graph of every _______ is a straight line that intersects the origin.
direct variation
5. Direct variation is a type of _______.
linear function
6. inverse variation
y=a/x where a is a constant number other than zero.
7. The graph of every inverse variation is a _______.
curve
8. rational number
Any number that can be written as the quotient of two integers.
9. The sum of two numbers having the same sign can be found by...
... adding their absolute values, the answer having the same sign as the numbers.
10. The sum of two numbers having opposite signs can be found by...
...subtracting their absolute values, the answer having the same sign as the number having the larger absolute value.
11. Subtracting a number is equivalent to...