All About Linear Functions
Intercepts
Writing Linear Functions
Slope
Graphing Linear Functions
Rando
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
y-intercept: -2
100
Write the equation of a line that passes through (2, 3) with a slope of -4
y -3 = -4 (x -2)
100
Identify the slope of the linear equation
y = -x + 6
The slope is -1/1. Down one, right 1.
100
Halloween Fact:
What is the most hated Halloween candy according to a 2021 survey by CandyStore.com?
Candy corn!
Other "worst Halloween candy" picks include Circus Peanuts, wax Coke bottles, Necco Wafers, Tootsie Rolls, and black licorice.
100
What are the three forms we have learned to write a linear equation?
Slope Intercept form
Standard form
Points Slope form
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 go through the y-axis
200
Write a linear function with a slope of -9 and a y-intercept of 5
y =-9x+5
200
Find the slope of a line that passes through the points (0, 5) and (2, 10)
m = 5/2
200
True or False:
The slope of a vertical line is zero.
False. The slope of a vertical line is undefined.
200
True or False: Cats are unable to taste anything sweet.
True
300
Function or Not?
x -1 2 5 2
y -2 7 16 25
Not a Function
300
What are the x and y-intercepts of the linear function
12x – 6y = –36
x-intercept:(-3,0)
y-intercept: (0,6)
300
True or False: The moon is wider than Australia.
FALSE! The moon sits at 2,113 miles in diameter, while Australia’s diameter from east to west is almost 2,485 miles.
300
What is the slope of a horizontal line
0
300
Function or Not?
x 0 2 6
y -1 1 5
Function
300
When is your test for Linear Functions Day 1-7
Wednesday 11/13
400
In Slope Intercept Form, what letter represents slope and what letter represents the y-intercept?
m = slope
b = y-intercept
400
True or False: Pigs cannot look up to the sky.
TRUE: Due to the anatomy of their neck muscles and spine, pigs are unable to look upwards.
400
True or False
When calculating slope, you should always label your points (x1, y2) and
(x2, y1)
FALSE
Label them (x1, y1) and (x2, y2)
400
Draw a slope that is undefined.
Vertical line
400
True or False;
When graphing lines in Point Slope Form, you will use the opposite of x1, y1 AND the opposite of the slope shown.
False. Do not use the opposite of the slope shown.
400
When graphing using a table, what are the five x-values Ms. Awtrey suggests you use if there are no x-values already given?
-2, -1, 0, 1, 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
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
500
What two pieces of info do you need to write an equation in Point-Slope Form?
a point (x1, y1) and a slope m
500
What is the formula used to find Slope?
the steepness of a line
500
True or False: When graphing lines in Standard Form, you must know the slope and a point.
False. You must use the x and y intercepts.
500
When is Graduation?
May 22nd, 2025