Unit 7 Fast 7 Curious - Quadratic Basics

• 2x-1

• x+4

• 2x+1

• x-4

• x-2

• 2x+5

• x+3

• 2x-5

• x-3

• 5x+2

What's the max/min? 

• Minimum: -4
• Minimum: -3
• Maximum: -4 
• Minimum: -3

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

Tags

CCSS.HSF-IF.C.7A

What are the X-intercept(s) of this graph?

• -1 and -3

• 1 and -3

• 1 and 3

• -1 and 3

Tags

CCSS.HSF-IF.C.7A

What steps transform the graph y = x² to y = 2(x+2)² - 5?

• Compress by 2, shifted 2 units left and 5 down

• Stretch by 5, shifted 5 units left and 2 down

• Stretch by 2, shifted 2 units left and 5 down

• Compress by 5, shifted 2 units left and 2 down

What steps transform the graph y = x² to y = x² + 8

• shifted up 8 units

• shifted down 8 units

• shifted left 8 units

• shifted right 8 units

The vertex form of a quadratic equation is:

y=a(x - h)² + k, where (h, k) is the vertex, a is the vertical stretch factor and the indicator of whether the parabola opens up or down, and (x,y) is any ordered pair on the parabola.

Write the equation of the parabola with vertex (3, 4) and stretch factor a=2.

• y=3(x-2)² + 4

• y=4(x-2)² + 3

• y=2(x-3)² + 4

• y=2(x+3)² + 4

The vertex form of a quadratic equation is:

y=a(x - h)² + k, where (h, k) is the vertex, a is the vertical stretch factor and the indicator of whether the parabola opens up or down, and (x,y) is any ordered pair on the parabola.

Write the equation of the parabola with vertex (-1, -5) and stretch factor a=3.

• y=3(x-1)² - 5

• y=-3(x-1)² - 5

• y=3(x+1)² - 5

• y=-3(x-1)² - 5