Upcoming SlideShare
×
Like this presentation? Why not share!

Like this? Share it with your network

Share

# Module 4 topic 3 notes

• 430 views

• Comment goes here.
Are you sure you want to
Be the first to comment
Be the first to like this

Total Views
430
On Slideshare
430
From Embeds
0
Number of Embeds
0

Shares
0
0
Likes
0

No embeds

### Report content

No notes for slide

### Transcript

• 1. Module 4 Topic 3 Writing Linear Equations
• 2.
• The equation for slope-intercept form is
• m is the slope  slope measures the
• steepness of the line  m=-4/2=-2
• b is the y-intercept  b is where the
• line crosses the y-axis.
-4 2
• 3.
• Write the equation of the line that has a
• slope of -4 and y-intercept of 5 .
• 4. We use Point-Slope form, when we are given: a point and a slope!
• 5. Write the equation of the line that passes through (-3,5) and has a slope of 2. What are we given? We are given the slope is 2! AND…we are given a point (-3,5). Final Answer
• 6. Write the equation of the line that passes through (-3,5) and (-1,9) . What are we given? We are given 2 points, but no slope! Can we find the slope? Do we have enough info? Yes, we can use…
• 7. Write the equation of the line that passes through (-3,5) and (-1,9) . Now that we know that the slope is 2, we can use either point to find the equation of the line.
• 8.
• Summary
• When given the slope and y-intercept : y=mx+b.
• When given 1 point and the slope , do point slope: y – y 1 =m(x-x 1 ).
• When given 2 points, and no slope , one must find the slope (m=y 2 -y 1 over x 2 -x 1) , then use either point for the point slope form.
Now proceed to Mastery Assignments!