

Unit 3 - Slope-intercept form given two points
Presentation
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Thomas O'neill
Used 27+ times
FREE Resource
11 Slides • 3 Questions
1
Unit 3 - Slope-intercept form given two points

2
Fill in the Blanks
Write the equation of a line in slope-intercept form that passes through the point (2,5) and has a slope of 4.
Type answer...
3
Write the equation of a line in slope-intercept form that passes through the point (2,5) and has a slope of 4.
y = mx + b
y = 4x + b
5 = 4(2) + b
5 = 8 + b, subtract 8 from both sides...b = -3
y = 4x - 3
4
Fill in the Blanks
Determine the slope of the line given the following points:
(2,5) and (4, 13). (Calculate Algebraically then check graphically - using desmos)
https://www.desmos.com/calculator
Write your answer as
m =
Type answer...
5
Determine the slope of the line given the following points: (2,5) and (4, 13).
Rise over Run translates to change in y over change in x.
(y2 - y1) / (x2 - x1)
x1 = 2, y1 = 5, x2 = 4, y2 = 13
y2 - y1, 13 - 5 = 8
x2 - x1, 4 - 2 = 2
8/2 = 4/1 or 4
slope or m = 4
6
Slope-Intercept Form
7
Example of a linear equation in slope-intercept form.
8
Determining slope of a linear function.
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Write the equation of the line through the points (2, 5) and (4,13).
10
Take one of the two ordered pairs and use the x and y values to substitute into the equation. Solve for b (y-intercept).
11
Substitute the one of the two ordered pairs back into the equation for x and y and evaluate both sides. Check graphically as well.
12
Check Algebraically.
13
Check Graphically using desmos.
https://www.desmos.com/calculator
14
Fill in the Blanks
Write the equation of the line through (4,7) and (6,13)
Type answer...
Unit 3 - Slope-intercept form given two points

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