Chapter 4 Review
Presentation
•
Mathematics
•
8th - 9th Grade
•
Practice Problem
•
Medium
Standards-aligned
Gianna Attardi
Used 5+ times
FREE Resource
6 Slides • 11 Questions
1
Chapter 4 Review
writing equations of lines
By Gianna Attardi
2
When given slope and y-intercept...
Use y=mx+b
Replace the m with the slope, and the b with the y-intercept.
3
Multiple Choice
Write the slope-intercept form of the equation of the line given the slope and y-intercept.
Slope=−54, y−intercept=−3
y=−3x−54
54x+y=−3
y=−54x−3
y=54x+3
4
Multiple Choice
Write the slope-intercept form of the equation of the line given the slope and y-intercept.
Slope=−2, y−intercept=8
y=−2x+8
y=8x−2
2x+y=8
y=2x−8
5
When given slope and a point...
Use point-slope form: y-y1=m(x-x1)
Replace the m with the slope, and (x1, y1) with the given point.
6
Multiple Choice
Write the slope-intercept form of the equation of the line through (1, 2) with slope 7.
Step 1: Plug values into point-slope form. Choose the correct equation.
y−1=7(x−2)
y−2=7(x−1)
y+2=7(x+1)
y+1=7(x+2)
7
Multiple Choice
Write the slope-intercept form of the equation of the line through (1, 2) with slope 7.
Step 2: Rewrite the equation in slope-intercept form. (Simplify, then solve for y).
y=7x−13
y=7x−5
y=7x+5
y=7x+13
8
Fill in the Blanks
Type answer...
9
When given two points (x1,y1) and (x2, y2).
Use point-slope form: y-y1=m(x-x1)
Use the slope-formula to calculate the slope.
Plug in m and one of the points to write the equation.
10
Fill in the Blanks
Type answer...
11
Fill in the Blanks
Type answer...
12
Fill in the Blanks
Type answer...
13
When given a point and a line parallel.
Use point-slope form: y-y1=m(x-x1)
Parallel lines have the same slope. Identify the slope of your new line.
Use the slope and the point to write the equation of the line.
14
Fill in the Blanks
Type answer...
15
When given a point and a line perpendicular.
Use point-slope form: y-y1=m(x-x1)
Perpendicular lines have opposite reciprocal slopes. Identify the slope of your new line.
Use the slope and the point to write the equation of the line.
16
Fill in the Blanks
Type answer...
17
Poll
How do you feel about writing equations of lines?
I've got this.
I'm getting there.
I can do this with some help.
I need help.
Chapter 4 Review
writing equations of lines
By Gianna Attardi
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