Quadratic From Graph

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

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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

Using the coordinates of the vertex (7, 1), solve for a. y = a(x-6)(x-8) What is the value of a?

• a = 1

• a = -1

• a = 7

• a = -7

The x-intercepts are (6,0) and (8,0) and a = -1.

Write the equation of the graph in factored form.

• (6-x)(x-8)

• -(x+6)(x+8)

• -(x-6)(x+8)

• (x+6)(x-8)

Tags

CCSS.HSF-IF.C.7A

The x-intercepts of a parabola are (-3, 0) and (5, 0).

The point (4, -3) is also on the graph.

What is the equation?

• y=4(x+3)(x-5)

• y=3/7(x-3)(x+5)

• y=-3(x-3)(x+5)

• y=3/7(x+3)(x-5)

Write a quadratic equation for this graph in turning point form.

• (x+1)²-4=y

• (x-1)²-4=y

• (x + 1)(x - 3)=y

• x2 +2x - 3=y

Identify the range:

• all real numbers

• y > -4

• y < -4

• x > -3

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Identify the range:

• all real numbers

• y > -4

• y < -4

• x > -3

Identify the range:

• all real numbers

• y > -3

• y < -3

• x > -1

Tags

CCSS.HSF-IF.C.7A

Identify the range:

• all real numbers

• y > 2

• y < 2

• x > 1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5