All About Linear Functions
Intercepts
Functions
Slope
100
What is the shape of the graph of a linear function?
Linear functions are those whose graph is a straight line.
100
What are the x and y-intercepts of the following graph?
x-intercept: (2.5, 0)
y-intercept: (0, -2)
100
Do the following list of order pairs represent a function? Yes or No
{(5, -1), (0, 3), (-2, -4), (6 , -1) (-2, 3)}
No
100
Identify the slope of the linear equation
y = -x + 6
The slope is -1/1. Down one, right 1.
200
What is an x-intercept?
The point where a line crosses the x-axis.
200
TRUE or FALSE
A line with a slope that is undefined has a y-intercept
FALSE...it does not pass through the y-axis
200
Do the following list of ordered pairs represent a function? Yes or No
{(9, 2), (-4, -1), (0, -3), (-7, 6) (5, -2) }
Yes
200
What is the slope of a horizontal line
0
300
Function or Not?
x -1 2 5 2
y -2 7 16 25
Not a Function
300
What is the y-intercept of the following linear function:
3y = 6x - 12
(0, -4)
300
State the domain of the given ordered pairs.
{(9, 2), (-4, -1), (0, -3), (-7, 6) (5, -2) }
{-7, -4, 0, 5, 9}
300
What is the slope of a line that passes through the points: (-4, 6) and (2, -6)
m = -2
400
In Slope Intercept Form, what letter represents slope and what letter represents the y-intercept?
m = slope
b = y-intercept
400
T or F
When graphing in Slope - Intercept form, y = mx + b, the y stands for the y-intercept
False
b stands for the y-intercept
400
State the range of the following ordered pairs:
{(9, 2), (-4, -1), (0, -3), (-7, 6) (5, -2) }
{-3, -2, -1, 2, 6}
400
Find the slope of a line that passes through the points (0, 5) and (2, 10)
m = 5/2
500
What is a y intercept?
The point on a graph where the line crosses the y axis.
or
The coordinate where the x value is 0.
500
What are the x and y-intercepts of the linear function
12x – 6y = –36
x-intercept:(-3,0)
y-intercept: (0,6)
500
If f(x) = 3x2 + 1. Evaluate f(-4).
f(-4) = 49
500
What is the slope of a vertical line?
Undefined