Linear Equation Forms
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1Name: _________________________
Period _____
Unit 5: Forms of Linear equations
Homework Due: Monday 12/16
Linear Equation Forms
Slope-intercept form
Standard form
Point-slope form
(y – y
) = m(x – x
)
1
1
y = mx + b
Ax + By = C
(x
, y
) is a point on the line
1
1
m = slope; b = y-intercept
A and B are both not 0
and m is the slope
2
5
2
2x 3y
5
y
x
y 1
(x 1)
3
3
3
1) What is the equation of a line with slope –3 and y-intercept -7?
2) Write an equation in slope-intercept form for each of the following lines:
(a) the line containing A (0, 7) and B (7, 0)
(b) slope: 2
(c) slope: 0
containing P(4, 5)
y-intercept: -7
3) Write an equation in point-slope form for a line passing through points (2,7) & (1, -4);
then rewrite the equation in slope-intercept form.
4) Find the x and y-intercepts of the following equation written in standard form:
9x – 6y = -72
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