Graphs to Memorize

HW - Families of functions

Use the word bank below to identify each graph, write equation of a parent function when possible

Linear Absolute Value Quadratic Rational

Cubic Quartic or x ½ - Square root

Logarithmic Exponential Growth Exponential Decay

1. ______2. ______3. ______

Domain: ______Domain: ______Domain: ______

Range: ______Range: ______Range: ______

4. ______5. ______6. ______

Domain: ______Domain: ______Domain: ______

Range: ______Range: ______Range: ______

7. ______8. ______9. ______

Domain: ______Domain: ______Domain: ______

Range: ______Range: ______Range: ______

Review of Regression

How do we find the best fit model?

1) Enter data: STAT 1: Edit (enter data into L1 and L2)

2) Turn on Stat Plot: y = up to Plot1, then ENTER. Plot1 should be darkened.

3) Determine what kind of regression you need based on the shape of the scatter plot: ZOOM 9:ZoomStat to look at graph.

4) STAT -> CALC 4:LinReg for a linear function,

5:QuadReg for a quadratic function.

6:CubicReg

7:QuartReg

9:LnReg

0:ExpReg

Tip – before hitting enter push vars, y1 and the equation will be stored in y= and will be ready to be graphed

5) write the equation of the regression

KEY

Use the word bank below to identify each graph.

Linear Absolute Value Quadratic

Cubic Quartic or x 1/2

Logarithmic Exponential Growth Exponential Decay

1. ______2. ______3. ______

4. ______5. ______6. ______

7. ______8. ______9. ______

Muscarella, 2008