Linear & Quadratic Functions & Modeling

Write the equation of the line through given that f(-6) = -19 and f(2) = 5. Show your work

The correlation coefficient is a number "r" such that: 

• -1<r<1
• -1>r>1
• -1≤r≤1
• -1≥r≤1

Estimate the correlation coefficient for this scatterplot.

• A) r = -0.9

• B) r = 1

• C) r = 0.9

• D) r = -1

A restaurant sells pizza for the prices in the data table.  Calculate the linear regression equation of the data.

What is the vertex of the following equation?
y=5(x-3)²+5

• (3,5)
• (-3,5)
• (3, -5)
• (-3,-5)

y=2x²-6x+1 is in what form?

• Vertex Form
• Factored form
• Standard Form 
• Cannot be determined

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

Describe how to transform y = x² to y = 2(x+2)² - 5? Then graph the function.

What is the axis of symmetry in a function?

• The transformation of the graph

• The vertex, represented by (h,k)

• A vertical line that passes through the vertex and divides the parabola in half

• y = h

What is the "formula" for finding the axis of symmetry?