notes over 4.3 finding intercepts find the x-intercept of the graph of the equation. x-intercept...

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Notes Over 4.3 Finding Intercepts Finding Intercepts Find the x-intercept of the graph of the equation. 1 6 . x y 6 x 0 x 6 x- intercep t y- intercep t The x value when y is equal to 0. Place where the graph crosses the x-axis. The y value when x is equal to 0. Place where the graph crosses the y-axis.

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Notes Over 4.3Finding InterceptsFinding Intercepts

Find the x-intercept of the graph of the equation.

1 6. x y 6 x 0x 6

x-intercept

y-intercept

The x value when y is equal to 0. Place where the graph crosses the x-axis.The y value when x is equal to 0. Place where the graph crosses the y-axis.

Notes Over 4.3Finding InterceptsFinding Intercepts

Find the x-intercept of the graph of the equation.

2 2 4. x y 4 2 x 0 2x 4

x-intercept

y-intercept

The x value when y is equal to 0. Place where the graph crosses the x-axis.The y value when x is equal to 0. Place where the graph crosses the y-axis.

2 2x 2

Notes Over 4.3Finding InterceptsFinding Intercepts

Find the x-intercept of the graph of the equation.

3 3 2 6. x y 6 23 x 03x6

x-intercept

y-intercept

The x value when y is equal to 0. Place where the graph crosses the x-axis.The y value when x is equal to 0. Place where the graph crosses the y-axis.

33x 2

Notes Over 4.3Finding InterceptsFinding Intercepts

Find the y-intercept of the graph of the equation.

4 6. x y 6 y0

y6

x-intercept

y-intercept

The x value when y is equal to 0. Place where the graph crosses the x-axis.The y value when x is equal to 0. Place where the graph crosses the y-axis.

y 6

Notes Over 4.3Finding InterceptsFinding Intercepts

Find the y-intercept of the graph of the equation.

5 2 4. x y 42 y0

y 4

x-intercept

y-intercept

The x value when y is equal to 0. Place where the graph crosses the x-axis.The y value when x is equal to 0. Place where the graph crosses the y-axis.

Notes Over 4.3Finding InterceptsFinding Intercepts

Find the y-intercept of the graph of the equation.

6 3 2 6. x y 62 3 y0

2y6

x-intercept

y-intercept

The x value when y is equal to 0. Place where the graph crosses the x-axis.The y value when x is equal to 0. Place where the graph crosses the y-axis.

2 2y 3

Notes Over 4.3Finding InterceptsFinding Intercepts

In standard form, Ax + By = C ,

the x-intercept is C

A

x-intercept

y-intercept

The x value when y is equal to 0. Place where the graph crosses the x-axis.The y value when x is equal to 0. Place where the graph crosses the y-axis.

the y-intercept is C

B

Notes Over 4.3Making a Quick GraphMaking a Quick GraphFind the x-intercept and the y-intercept of the line. Use the intercepts to sketch a quick graph of the equation.

7 6. y x xx

x y 6the x-intercept is

6

16

the y-intercept is 6

16

Notes Over 4.3Making a Quick GraphMaking a Quick GraphFind the x-intercept and the y-intercept of the line. Use the intercepts to sketch a quick graph of the equation.

8 5 15. x y

the x-intercept is 15

115

the y-intercept is 15

5 3

3 6 9 12 15 18

Notes Over 4.3Making a Quick GraphMaking a Quick GraphFind the x-intercept and the y-intercept of the line. Use the intercepts to sketch a quick graph of the equation.

9 4 2. y x

the x-intercept is 4

22

the y-intercept is 4

14

2x2x2x y 4

Notes Over 4.3Making a Quick GraphMaking a Quick GraphFind the x-intercept and the y-intercept of the line. Use the intercepts to sketch a quick graph of the equation.

10 7 14. x y

the x-intercept is 14

72

the y-intercept is 14

1 14

-2 -4 -6 -8 -10 -12 -14

Notes Over 4.3Making a Quick GraphMaking a Quick GraphFind the x-intercept and the y-intercept of the line. Use the intercepts to sketch a quick graph of the equation.

11 3 4 24. x y

the x-intercept is 24

38

the y-intercept is 24

46

Notes Over 4.3Making a Quick GraphMaking a Quick GraphFind the x-intercept and the y-intercept of the line. Use the intercepts to sketch a quick graph of the equation.

12 2 7 10. y x

the x-intercept is 10

7 1

3

7

the y-intercept is 10

25

7x 7x 7 2x y10

Notes Over 4.3