# Math 8 Lesson Plan 26 Develop the equation of a line based on its points class outline for students.doc ```Sewanhaka High School
Math 8
Per:________________
Name:________________________________
Mrs. Lidowsky, Principal
Mr. Long, Teacher
Date:_____________________
H.W. #26: Ditto
DO-NOW #26:
1)
2) I am thinking of two numbers. One number is three times the other. Their sum is 12. What are the numbers?
Topic: Expressions and Equations
Main Idea: Writing Linear Equations
Aim:
RECALL
What is the slope of the related graph?
Write an equation of the line of the related graph?
Graph the data from the table on the coordinate plane.
NOTES
Definition: You can write an equation of a line in
slope-intercept form when you know the slope and
the y-intercept. You can write an equation of a
line in point-slope form when you are given the
slope and the coordinates of a point on a line that
is not the y-intercept.
Write an equation in point-slope form for the line
that passes through (-2, 3) with a slope of 4.
Write the slope-intercept form of the previous
equation.
Write an equation in point-slope form and slopeintercept form for the line that passess through
(8, 1) and (-2, 9).
Drill: Answer the following questions. Show work.
Write an equation in point-slope form and slope-intercept form for each line.
1) passes through the point (1, 9) and has a slope of 2.
3
2) passes through the point (-4, -5) and has a slope of .
4
3)
Summary:
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