Lesson 2.8 - 2.9

Definitions:

​Y-Intercept: Graphically, the y-intercept is the point where your line crosses the y-axis. It is represented by the variable 'b' and is the coordinate (0,b)

​

​Slope Intercept Form: The equation of any line can be represented by y = mx + b where x and y are your coordinates, m is your slope and b is the y-intercept.

Initial Value: Another name for y-intercept.

Subject | Subject

Some text here about the topic of discussion

How to find the y-intercept: Graphically

Locate where the line crosses the y-axis (vertical axis).

(1,5), (2,8), (3,11), (4,14), (0,2)

To find the y-intercept as coordinates, we will look for when the x-coordinate is 0. Its' y-coordinate will be the y-intercept.

Step 1: Make sure equation is in slope intercept form, y = mx + b







Step 2: Find out what value replaced 'm', that is the slope. Find out what value replaced 'b', that is the y-intercept.

• Step 1: Find Slope (m)

• Step 2: Find y intercept (b)

• Step 3: Craft your equation

• Step 1: Find Slope (m)

• Step 2: Find y intercept (b)

• Step 3: Craft your equation

​Step 1: Plot the y-intercept

Step 2: Use slope as rise over run
to find second point

Step 3: Connect the dots
(note: online it will do this for you)