Staar Parabolas Review

Identify A, B, and C if y=3x²-8+5x

• A=3, B=5, C=-8

• A=3, B=-8, C=5

• A=3x², B=5x, C=-8

• A=3x² , B=-8, C=5x

What is the equation of this graph?

• y = x² + 1

• y = - x² + 1

• y = x²

• y = - x²

Tags

CCSS.HSF-IF.C.7A

The equation of the parabola is:

• y = x + 2

• y = x² + 2

• y = x - 2

• y = x² - 2

Tags

CCSS.HSF-IF.C.7A

Which equation would give the graph of a parabola?

• y = 2x - 3

• y = x₂ + 1

• y = x² + 4

Tags

CCSS.HSF-IF.C.7A

Is the following parabola concave up or concave down?

• Concave down

• Concave up

• Neither

Tags

CCSS.HSF-IF.C.7A

How can you tell whether a parabola is facing up or facing down by looking at the equation?

• The vertex tells you the direction of the opening

• The value of "a" tells you the direction of the opening.

• All parabolas open upward

• All parabolas open downward

If the a value is positive in the equation of y = ax² + c, which direction does the graph open?

• up

• down

• left

• right

Tags

CCSS.HSF-IF.C.7A

If the a value is negative in the equation y = ax² + c , which direction does the parabola open?

• up

• down

• left

• right

Tags

CCSS.HSF-IF.C.7A

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

• a

• b

• c

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

• 5

• 3

• - 3

• -5

Tags

CCSS.HSF-IF.C.7A