Notes with answers - Summit Schools

words to review
use your own words and/or an example to explain
the vocabulary word.
Relation
A mapping, or pairing,
of input values with
output values
Range
The set of output
values in a relation
Equation in two variables
y 5 2x 2 5
Dependent variable
The dependent variable
in the equation
y 5 2x 2 5 is y.
Function notation
f(x) 5 2x 1 4
y-intercept
The y-intercept of
y 5 2x 1 4 is 4.
x-intercept
The x-intercept of
y 5 2x 1 4 is 22.
Domain
The set of input values
in a relation
Function
A relation for which
each input has exactly
one output
Independent variable
The independent
variable in the equation
y 5 2x 2 5 is x.
Linear function
A function that can be
written in the form
y 5 mx 1 b where m
and b are constants
Slope
The slope of the line
passing through (2, 6)
and (5, 9) is
m 5 y 2 2 y 1
}
x 2 2 x 1
5
9 2 6
}
5 2 2
5 3
}
3 5 1.
Slope-intercept form
y 5 2x 1 4
Standard form of a linear
equation
2x 1 4y 5 7
46 Words to Review • Algebra 2 C&S Notetaking Guide Copyright © McDougal Littell/Houghton Mifflin Company