alg 2 RR 6/12

• right

• up

• down

• left

The graph of f(x) is shown.

Which function could represent the graph of f(x)?

• 1

• -2

• -1

• 2

• -1.75 and -1.438

• -1.75 and 4

• -1.438 and 0

• 4 and 0

• 0.583

• 1.945

• 4.220

• 14.066

• {5}

• {7}

• {5,7}

• { }

The results of a national mathematics exam are normally distributed with a standard deviation of 8.9% and a mean of 72.7%. What percentage of the exam takers scored between an 80% and 89% on the exam?

• 79.4%

• 17.3%

• 3.4%

• 68%

Use you calculator to find the exponential regression model for the data provided.

• y=512(0.25)^x

• y=32(4)^x

• y=512(4)^x

• y=32(0.25)^x