# Parabola and its Intercepts There are 2 intercepts to calculate : y – interceptwhere x = 0...

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- Slide 1
- Parabola and its Intercepts There are 2 intercepts to calculate : y interceptwhere x = 0 substitute x = 0 into the equation and solve for y x interceptswhere y = 0 ( sometimes there are NONE ) Two ways to solve : a) Factoring Method b) Quadratic Formula x - intercepts y - intercept
- Slide 2
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as :
- Slide 3
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept- substitute x = 0 and solve for y
- Slide 4
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 8 )
- Slide 5
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 8 ) x intercept- is the equation factorable ? - are there 2 factors of 8 that add/sub = 6 ?
- Slide 6
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 8 ) x intercept- is the equation factorable ? - are there 2 factors of 8 that add/sub = 6 ? YES
- Slide 7
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 8 ) x intercept YES Factoring Method
- Slide 8
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 8 ) x intercept - set y = 0 and solve for x Factoring Method
- Slide 9
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 8 ) x intercept Factoring Method
- Slide 10
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 8 ) x intercept = ( - 4, 0 ) and ( - 2, 0 )
- Slide 11
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as :
- Slide 12
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept- substitute x = 0 and solve for y
- Slide 13
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 1 )
- Slide 14
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 1 ) x intercept- this equation is not factorable
- Slide 15
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 1 ) x intercept- this equation is not factorable QUADRATIC FORMULA a = 3 b = - 5 c = 1
- Slide 16
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 1 ) x intercept QUADRATIC FORMULA a = 3 b = - 5 c = 1
- Slide 17
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 1 ) x intercept = - You can keep your answer like this
- Slide 18
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 1 ) x intercept = - Or split it up like this
- Slide 19
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 1 ) x intercept = - Or use decimals, round to 2 places
- Slide 20
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as :
- Slide 21
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept
- Slide 22
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 3 )
- Slide 23
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 3 ) x intercept
- Slide 24
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 3 ) x intercept Equation is not factorable, use quadratic formula
- Slide 25
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 3 ) x intercept Equation is not factorable, use quadratic formula a = 5 b = 2 c = 3
- Slide 26
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 3 ) x intercept Equation is not factorable, use quadratic formula a = 5 b = 2 c = 3
- Slide 27
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 3 ) x intercept Equation is not factorable, use quadratic formula a = 5 b = 2 c = 3 Undefined, therefore there are NO x - intercepts
- Slide 28
- Parabola and its Intercepts EXAMPLE :Find the x and y intercepts for the parabola whose equation is defined as : y intercept = ( 0, 3 ) x intercept = NONE Undefined, therefore there are NO x - intercepts

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