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Cubics Quiz

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Cubics Quiz. 8 revision questions on cubics. #1. Write the equation for this cubic:. y. 10. y Intercept. 8. ( 0 , 8 ). y=(x-1)(x-2)(x-4). 6. 4. 2. x. -2. 2. 4. 6. 8. 10. -2. -4. #2. Write the equation for this cubic:. y. 10. y=(x-1) 2 (x+3). 8. 6. 4. y Intercept.

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Cubics Quiz

8 revision questions on cubics

#1. Write the equation for this cubic:

y

10

y Intercept

8

( 0 , 8 )

y=(x-1)(x-2)(x-4)

6

4

2

x

-2

2

4

6

8

10

-2

-4

#2. Write the equation for this cubic:

y

10

y=(x-1)2(x+3)

8

6

4

y Intercept

( 0 , 3 )

2

x

-10

-5

5

-2

-4

#3. Write the equation for this cubic:

y

10

y Intercept

( 0 , 60)

y=(x+6)(x+2)(x+5)

5

x

-10

-5

5

-5

-10

#4. Write the equation for this cubic:

y

5

y=(x+3)(x+4)(x-1)

x

-10

-5

5

10

-5

-10

y Intercept

( 0 , -12 )

-15

y=x(x+3)(x-4)

x-intercepts found when y=0 (or when each bracket is zero)

x=0, x=-3, x=4

y-intercept found when x=0

y=0(0+3)(0-4)

y=0x3x(-4)

y=0

y=(x+2)(x-1)(x+7)

x-intercepts found when y=0(or when each bracket is zero)

x=-2, x=1, x=-7

y-intercept found when x=0

y=(0+2)(0-1)(0+7)

y=2 x (-1) x 7

y= -14

y=-(x-5)(x-6)(x+1)

x-intercepts found when y=0(or when each bracket is zero)

x=5, x=6, x=-1

y-intercept found when x=0

y= - (0-5)(0-6)(0+1)

y=- (-5) x (-6) x 1

y= -30