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Laabri

Chapter 10 Test (v2)

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Last updated almost 5 years ago
21 Nsɛmmisa

Skill S.ID.5 Two-Way Tables and Relative Frequency

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F.BF.3 Transform graphs of quadratic functions

Describe the change of the parent function

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F.BF.1 Write exponential functions to describe exponential relationships.

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1.

60 students in 7th and 8th grade were surveyed about their favorite subject. Of the students surveyed, 40 of them were 8th graders. Of the 8th graders, 11 chose math as their favorite subject, and 12 chose English. In all 20 students chose math as their favorite subject. There were 8 students in 7th grade that chose science as their favorite. Complete a two way table for this information then make a relative Frequency Table to find if the students' grade determines their favorite subject.

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2.

What is the relative frequency (to the nearest percent) people who can't ride their bike to school, of whom are girls?

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3.

What is the relative frequency (to the nearest percent) of people who can ride their bike to school, among whom are boys?

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4.

A survey explored the relationship between gender and band class. What is the only reasonable conclusion?

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5.

A study was done on individuals who play instruments in comparison to those who play sports. What is a resonable conclusion?

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6.

Given that a student is between the ages of 10 and 13, what is the probability, or relative frequency, that they skip breakfast?

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7.

Did you complete all questions in this section?

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8.

Describe how the parent function changes to become

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9.

Describe how the parent function changes to become

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10.

How does the parent function change to become the following function (Select all that apply)

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11.

How does the parent function changes to become the following function (Select all that apply

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12.

Match the equation given the transformation using the parent function

Draggable itemarrow_right_altCorresponding Item

The vertex of the graph has been moved left 2 units and down 4units

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The Graph is a Reflection over the x-axis of the parent function.

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The graph is half as wide as the parent function.

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The graph is 4 higher than the parent function.

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13.

Did you complete all parts of this section?

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14.

Write an exponential equation for the following situation:

The cost of a loaf of bread is now $2.79 and has been increasing 8% per year for several years.

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15.

How much would the bread cost in 5 years? (Round to the nearest cent)

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16.

Find the equation of an exponential function of the form y = abx passing through the points (1, 10) and (5, 160).

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17.

Write the exponential function for the table

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18.

Write the exponential function for the table

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19.

Write the exponential function for the table

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20.

Timmy found out that the price of the Pi-roid1 has been losing its value. Three years ago it would have cost $800, and now it only costs $583.20. Write an equation to find the cost (y) for any year (x) if this trend continues.

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21.

How much will the phone cost if he waits until next year to buy one? (round to the nearest cent if necessary)