1. F-IF.B.4: Using Intercepts of Linear Equations

2. F-IF.4 Using Intercepts Definitions
Intercept: where two lines intersect.
x-intercept: where a point or line crosses the x -axis.
y-intercept: where a point or line crosses the y -axis.

3. F-IF.B.4 Using Intercepts
The idea behind graphing a linear equation using intercepts is to graph a line you need two points.
So we find and graph the x and y intercepts of the linear equation.

4. F-IF.B.4 Using Intercepts
To find the x-intercept, y has to equal zero.
(x, 0)
To find the y-intercept, x has to equal zero.
(0, y)

5. F-IF.B.4: Intercepts Method
Step 1: Write equation in Standard Form
Ax + By = C
5x + 6y = -60
Examples:
3x - 4y = 24

6. F-IF.B.4: Intercepts Method
Step 2:
Find the x-intercept:
By setting the y value equal to zero and then solve for x.
(x, 0)

7. F-IF.4: Intercepts Method
Step 3:
Find the y-intercept:
By setting the x value equal to zero and then solve for y.
(0, y)

8. F-IF.B.4: Intercepts Method
Step 4: Plot coordinates x Y x y x y

9. F-IF.B.4: Intercepts Method
Step 1: Write equation in:
Step 2: Find x intercept y = 0

10. F-IF.B.4: Intercepts Method
Step 3: Find y intercept x = 0

11. F-IF.B.4: Intercepts Method
Step 4: Plot coordinates: x Y x y -3 3 1 -2 -3 -1 1 3 -1 -3

12. F-IF.B.4: Intercepts Method
Example:
x- int y = 0
y -int x = 0

13. F-IF.B.4: Intercepts Method
Plot coordinates of: x Y x y 5 8 5 4 -8 -4 4 8 -4 -8