Writing and interpreting quadratic functions

What is the standard form of a quadratic function?

• y=mx+b

• ax+by=c

• y=ax²+bx+c

• y=(x+a)(x-b)

Suppose a parabola has vertex (1,-4) and also passes through the point (2,-1). Write the equation of the parabola in vertex form.

• y = (x - 1)² - 4

• y = 3(x - 1)² + 4

• y = 3(x - 1)² - 4

• y = 3(x + 1)² - 4

How do you convert y = 2x² - 5x + 10 to vertex form?

• Factor

• (p+q)/2

• Complete the square

• Quadratic Formula

Write the following quadratic expression is in vertex form by completing the square.

x² + 14x + 50

• (x + 7)² + 1

• (x - 7)² - 1

• (x - 7)² + 1

• (x + 7)² - 1

Identify the form of the quadratic function: f(x)=2x²+4x+1

• Quadratic

• General

• Factored

• Vertex

Write the following quadratic expression in vertex form
f(x) = x² + 10x + 21

Using the following 2 points, write an equation of the parabola by finding a first. 

• y=2(x+3)²-1
• y=2(x-1)²-3
• y=0.5(x+3)²-1
• y=0.5(x-1)²-3

Write the equation for the parabola shown in the graph. Write your answer in vertex form.

Which function’s graph has a vertex at (3, 5) and contains the point (5, 13)?

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What form is this quadratic function written in?

• standard form

• vertex form

• intercept form