Equation of a Parabola

Which letter in a equations y = ax² + c represents the y-intercept?

• a

• b

• c

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept of the parabola y = 5x² - 3

• 5

• 3

• - 3

• -5

Tags

CCSS.HSF-IF.C.7A

Which equation will result in the parabola being a narrower graph?

• y = 2x² + 1

• y = 7x² - 1

• y = 0.5x² + 1

• y = x²

Which of the following graphs could be y = 5x² + 1?

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7A

Which equation would result in the parabola being wider?

• y = 0.5x² + 2

• y = x²

• y = 10x² + 7

• y = - 3x² - 2

What is the correct graph for the equation y = - 0.5x² + 2

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept of the parabola?

• -4

• 4

• -3

• 0

Tags

CCSS.HSF-IF.C.7A

What are the x-intercepts for y = x² + 4x + 3

• -1 and -3

• 1 and 4

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry for the following equation?
y=4x²-8x+9

• x=-8

• x=1

• x=-1

• x=2

Find the vertex of 
f(x) = -x² - 4x + 12

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)