Algebra 1 CC

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Transcript Algebra 1 CC

ALGEBRA 1 CC
Graphing and Writing Equations in Standard
Form
• Standard Form
Ax  By  C
A
m
B
C
x-int 
A
C
y-int 
B
• To graph a linear equation in standard form, plot the x-
and y-intercepts and then connect them with a line.
Example 1
• Graph 6x – 4y = 36 and label the x- and y-intercepts.
Example 2
• Graph 5x – 2y = 13 and label the x- and y-intercepts.
Example 3
• Write two equations in standard form that are equivalent
to the given equation.
8x – 14y = 2
Example 4
• Write an equation in standard form of the line that passes
through the given point and has the given slope m.
(5, -1), m = 2
Example 5
• Write an equation in standard form of the line that passes
through the given point and has the given slope m.
1
(-15, -4), m =
2
Example 6
• Write an equation in standard form that passes through
the given points.
(-1, 2), (5, 4)
Example 7
• Write equations of the horizontal and vertical lines that
pass through the point (-2, 6).