1st Semester Ohio Algebra 1 End of Course Exam Questions

Click on the image to see the question and multiple choice options.

• A

• B

• C

• D

Answer explanation

1275 is approximately the location where a "best-fit line" would cross through the y-axis, indicating the cost of rent in the center of the city would be approximately $1275.

The other three choices are not reasonable.

An analyst researches the relationship between different energy sources in each state for 2014. The data in the table show the number of states that use coal and nuclear power as an energy source.

Given that a state does NOT use NUCLEAR POWER, what PERCENTAGE of THOSE states USE COAL?

NOTE: Type answer without % sign after it,

as test question already has % sign label.

Mathematical Equivalence

ON

Answer explanation

A group of students measures the distance a toy car has traveled after different amounts of time. A table of the data is shown. The students want to perform an analysis of the data set and consider removing the outlier point.

SELECT ALL OF THE QUANTITIES THAT WILL CHANGE IF THE OUTLIER POINT IS REMOVED FROM THE DATA SET.

HINT: Use DESMOS to determine the MEAN and MEDIAN of the data WITH and WITHOUT the OUTLIER!

TIME: 5,6,7,8,9,10,11,12,13,14,15

DISTANCE: 1,1.2,2.4,3.3,3.7,11,4.2,3.7,4.8,4.5,4.9

• Mean of the TIME

• Mean of the DISTANCE

• Median of the TIME

• Median of the DISTANCE

• Range of the DISTANCE

Answer explanation

If you use DESMOS to find the MEAN and MEDIAN of the TIME and DISTANCE data, you can REMOVE THE OUTLIER VALUE (time 10 seconds, or distance 11 meters) to see whether the measure changes.

Time Mean: Was 10, STAYS 10 if 10 is removed

Dist. Mean: CHANGES (decr.) if 11 is removed

Time Median: Was 10, STAYS 10 if 10 is removed

Dist. Median: Was 3.7, STAYS 3.7 if 11 is removed

Dist. Range: CHANGES from 1-11 to 1-4.9

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Answer explanation

For a table of values to "REPRESENT Y AS A FUNCTION OF X" -- each x-value can be paired up with only ONE y-value.

In a table of values, if an X-VALUE REPEATS, it means the x-value is paired with MORE THAN ONE y-value.

There are NO REPEAT X-VALUES in TABLE B, so table B "represents y as a function of x."

Molly tracks the time and distance of her hike, expressing distance as a function of time on the graph shown.

What is the DOMAIN of the function?

HINT: DOMAIN refers to "x-values" for which the graph "exists"

Answer explanation

Answer explanation

• Fixed fee

• Cost per pound

• Pounds

• Total cost

Look at the rulers shown in the image provided.

Which ruler will give the most accurate measurement for the length of a small object?

• A

• B

• C

• D

Answer explanation

Ava has 48 fiction books and 22 nonfiction books.

She has 18 total books that are signed by their author.

There are 40 fiction books that are unsigned.

Complete the two-way frequency table to show the number of each type of book in Ava's collection.

How many NONFICTION books are UNSIGNED?

HINT: You'll NEED to copy the table onto scratch paper to figure this out!

Mathematical Equivalence

ON

Answer explanation