Topic: Graphing Linear Equations
HF202
Page 20
L13.1 p.568
Level: Apply
Do: Graph Linear Equations using a table of values.
G
Essential Question: How can you recognize a linear equation?
How can you draw its graph?
Questions:
A relationship where one thing depends upon
another is called a ___________. In a
____________, one or more operations are
performed on one number (the ______________
variable) to get another (the ____________
variable).
Functions are often written as ____________.
The input x is any
real number.
y is the output obtained
after applying the rule.
The operations performed
in the function are called
the rule.
Linear Equations:
A linear equation is an equation whose graph is a line. All points
on the line are solutions of the equation.
You can organize the input, rule and output of a
function into a ___________ ________.
Questions:
Graph
1) Make a table of values.
Input x
Rule
Output y
2) Plot ordered pairs (x, y).
(x, y)
3) Draw a line
through the points.
Graph
1) Make a table of values.
Input x
Rule
Output y
2) Plot ordered pairs (x, y).
(x, y)
3) Draw a line
through the points.
Questions:
Graph
1) Make a table of values.
Input x
Rule
Output y
2) Plot ordered pairs (x, y).
(x, y)
3) Draw a line
through the points.
Graph
1) Make a table of values.
Input x
Rule
Output y
2) Plot ordered pairs (x, y).
(x, y)
3) Draw a line
through the points.
B) Graphing a Horizontal Line and a Vertical Line
Horizontal Line
Vertical Line
Questions:
Graph
Graph
Graph
Graph
The cost y (in dollars) for making friendship bracelets
is
, where x is the number of bracelets.
a) Graph the equation.
b) How many bracelets
can be made for $10?
Summary: