Download 10-31-16-graphing-linear-equations-real

Slot Work
YIP: Supplementary Angles =180°
Complementary Angles = 90°
Table of Contents
Date
10-31-16
Target
Graph Linear Functions
I bet you all are wondering: What
is a linear equation?????
YIP: a Linear Equation = an
equation whose graph forms a
straight line.
What is a Linear Equation?
YIP: Linear equations are usually shown on a coordinate
plane
YIP: Real life situations of linear equations:
- the stock market
- the payments of a car
- Sports statistics
Example of a Linear Function
Y
77
A Dog’s
Human’s
Equivalent 35
Age
21
(0,0)
•
(11,77)
Y = 7x
•
(5,35)
• (3,21)
3 5 11
A Dog’s Actual Age
X
Let’s see if we can graph the line below…
Example 1
Graph the line y = x + 1
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YIP: Graphing using a Table of Values
1. Draw a table
2. Choose at least 5 inputs (x values) – some
negative and some positive
x
rule: y = x + 1
y
7
1.3.1: Creating and Graphing Linear Equations in Two Variables
3. Substitute the inputs into the equation to
find the outputs or y-values
x
Y=x+1
y
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4. Draw a coordinate plane. Be sure to label the x and y
axis and write in an appropriate scale.
5. Plot the points and connect.
y
x
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Foldable
10
HOMEWORK
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