Transformations Day 4

Describe the transformation: y=-3(x-2)²-4.

*Mark all that apply.

• reflection across x-axis

• VS by factor of 3

• VC by factor of 3

• down 4

• right 2

y=(x+2)²+4

*Mark all that apply.

• reflection across x-axis

• left 2

• up 4

• right 2

y= -(x-11)²+6

*Mark all that apply.

• right 11

• reflection across x-axis

• VC

• up 6

y= 1/4x²+8

*Mark all that apply.

• VC by a factor of 1/4

• up 8

• left 8

• right 8

Write the equation of this transformation: up 8

• y=(x+8)²

• y= x²+8

• y= x²-8

• y=8x²

Write the equation of this transformation: reflection across x-axis, left 2, down 5

• y= -(x+2)²+5

• y= -(x+2)²

• y= (x-2)²-5

• y= -(x+2)²-5

Write the equation of this transformation: reflection across x-axis, left 3, up 15

• y= -(x+3)²+15

• y= -(x+3)² - 15

• y= (x+3)²+15

• y= -(x+15)²+3

In the equation f(x)=5(x+3)²-10 what does the 5 do?

• Vertical stretch by 5
• Horizontal compress by 5
• Reflect
• Move up 5

Which quadratic function is represented by the graph?

• y = 2(x - 4)² + 5
• y = 2(x + 4)² + 5
• y = -2(x - 4)² + 5
• y = -2(x + 4)² + 5

Write the equation of the quadratic function. (parabola)

• y = x² - 8

• y = x² + 8

• y = ( x - 8 )²

• y = ( x + 8 )²