The first coordinates in a set of ordered pairs is the
_____________ of the relation.
domain
What is the tilt or slant of a line called?
the slope
What is the y-intercept on a graph?
Where the line crosses the y-axis
True or False:
A system of equations can have no solution.
True
When graphing and the inequality is < or > the boundary line is
dashed
what is dashed?
Which test can be used to determine if a graph is a function?
the vertical line test
What is the slope of the line in this equation?
y=-3x+5
-3
What is the y-intercept in this equation?
y=2x-1
(0,-1)
-1
What graph would show a system of equations with one solution?
Intersecting lines
True or False: A point on the boundary line will make the equation true if the inequality is
<=
true
Is this relation a function? Why or why not?
{ (2, 3), (4, 3), (-2, 4), (0, 4)}
yes, because each x-value has only one y-value
Slope is the ratio of what two amounts?
rise over run
or
change in y over the change in x
Write the equation of a line with a y-intercept of (0, 2) and a slope of -4
y=-4x+2
Is (5, 1) a solution to this system?
y=x-4
y=-x+6
yes!
Is the point (4, 2) a solution to this inequality?
Yes!
What is the function rule for this relation?

f(x)=x-5
What is the slope of the line between the points
(0, 2) and (1, 5) ?
m = 3
What does the graph of y=3 look like?
a horizontal line through 3 on the y-axis
Solve this system of equations:
y=x
y=2x-4
(4, 4)
Which graph shows: y>1/2 x-4

Answer C
Write a function rule for this function.

y=-2x+6
What is the slope of a horizontal line?
zero
What is the slope of a vertical line?
undefined
What is the solution to this system of equations?
y=-2x+3
y=2x-1
(1, 1)
What inequality is represented by this graph? 
y<=2x+3