All About Linear Functions
Domain & Range
Slope
Random
100
How do you say "f(x)"?
"f of x!"
100
What type of number includes negative numbers but does not include fractions or decimals?
Integers
100
What is the formula used to find Slope?
the steepness of a line
100
What makes a relation a function?
Every input is paired with exactly one output.
200
If f(x) = -2x+3, find f(-100)
f(-100) = 203
200
What is the domain of this function?
x 0 2 6
y -1 1 5
x={0, 2, 6}
200
The slope of the line y = -3x + 2 and the instructions the slope gives you for graphing.
Slope is -3.
Down 3, right 1 or up 3, down 1.
200
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
300
Function or Not?
x -1 2 5 2
y -2 7 16 25
Not a Function
300
What is the range of this graph?
[-3,1)
300
Draw a slope that is undefined.
Vertical line
300
If g(x) = -2x2+2x, find g(-3).
g(-3) = -24
400
In Slope Intercept Form, what letter represents slope and what letter represents the y-intercept?
m = slope
b = y-intercept
400
The American Sycamore tree grows approximately 6 feet per year until they reach a maximum height of about 66 ft. This can be modeled by the function y=6x. What is a reasonable domain for this function?
[0,11]
or
0≤x≤11
400
What is the slope of the line?
-3/2
400
What are the x and y-intercepts of the following graph?
x-intercept: 2.5
y-intercept: -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
Joe buys DVDs at $15 each. He has enough money to buy at most 3 DVDs. If Joe buys x DVDs, he will spend f(x)=15x dollars. What is a reasonable domain for this situation?
{0,1,2,3}
500
Find the slope of a line that passes through the points (0, 5) and (2, 10)
m = 5/2
500
What is the equation of a line that has a slope of 3 that goes through the point (2,-1)
y=3x-7