Real World Situations writing regression equations

Find the quadratic regression equation for the relationship of the horizontal distance and the height of the ball in the provided table.

STAT/EDIT and then STAT/CALC/5:QuadReg

The population of Winnemucca, Nevada, can be modeled by P=6191(1.04)^t . What was the population in 1990? Hint: t is the number of years since 1990 so let t=0 and calculate P.

• 0 people

• It doesn't say

• I don't know

• 6191

• F
• G
• H
• J

The table contains some points on the graph of an exponential function.

Based on the table, which function represents the same relationship?

Use STAT/EDIT and STAT/CALC/0:ExpReg

• q(x)=(0.25)^x

• q(x)=256(0.25)^x

• q(x)=0.0625(4)^x

• q(x)=0.5(4)^x

• (-1,0), (5,0)

• (1,0), (-5,0)

• (0,-1), (0,25)

• (2, 43)

Label the Graph with the Correct Key Features.

1. ​ (a)   2. ​ (b)   ​

3. ​ (c)   ​ 4. ​ (d)  

• Y-Intercept
• Zero
• Vertex

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours
• 35 hours
• 45 hours
• 15 hours

Which model best fits this data set above?li

• linear

• exponential

• quadratic

Given the scatterplot above, which of the following equations would be best model the data?