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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Linear Equations in Two Variables and Their Graphs
Enrich Your Math Word Power
For each mathematical term, choose the correct meaning.
1
graph of an equation
A)
the Cartesian coordinate system
B)
two number lines that intersect at a right angle
C)
the x-axis and y-axis
D)
an illustration in the coordinate plane that shows all ordered pairs that satisfy an equation
2
x-coordinate
A)
the first number in an ordered pair
B)
the second number in an ordered pair
C)
a point on the x-axis
D)
a point where a graph crosses the x-axis
3
y-intercept
A)
the second number in an ordered pair
B)
a point at which a graph intersects the y-axis
C)
any point on the y-axis
D)
the point where the y-axis intersects the x-axis
4
coordinate plane
A)
a matching plane
B)
when the x-axis is coordinated with the y-axis
C)
a plane with a rectangular coordinate system
D)
a coordinated system for graphs
5
slope
A)
the change in x divided by the change in y
B)
a measure of the steepness of a line
C)
the run divided by the rise
D)
the slope of a line
6
slope-intercept form
A)
y = mx + b
B)
rise over run
C)
the point at which a line crosses the y-axis
D)
y - y
1
= m(x - x
1
)
7
point-slope form
A)
Ax + By = C
B)
rise over run
C)
y - y
1
= m(x - x
1
)
D)
the slope of a line at a single point
8
function
A)
domain and range
B)
a set of ordered pairs
C)
a rule by which any allowable value of one variable determines a unique value of a second variable
D)
a graph
9
domain
A)
the set of first coordinates of a function
B)
the set of second coordinates of a function
C)
the set of real numbers
D)
the integers
10
range
A)
all of the possibilities
B)
the coordinates of a function
C)
the entire set of numbers
D)
the set of second coordinates of a function
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