Answers Algebra IAnalyzing Tables

Point-Slope Form of a Line Answers

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The graph of a linear function is shown.

positive

negative

zero

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Aaron tracks the time it takes him to mow lawns by writing coordinate points relating x, the time in hours it takes to mow a lawn, and y, the area of land mowed in acres. Two of his points are (3, 1.5) and (5, 2.5). Which statement describes the slope of the line through these two points?

It takes Aaron about 1 hour to mow 2 acres.

Aaron’s rate for mowing lawns is 0.5 acres per hour.

The ratio of acres to time is 5 acres to 3 hours.

The rate to mow a lawn is 0.6 hours per acre.

The graph of a linear function is shown.

positive

negative

zero

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The table represents a linear function.

–6

–4

Vera wants to graph a line that passes through (0, 2) and has a slope of . Which points could Vera use to graph the line? Select three options.

(–3, 0)

(–2, –3)

(2, 5)

(3, 4)

(6, 6)

Line GH contains points G(–2, 6) and H(5, –3). What is the slope of ?

–

–

–

–

Line AB contains points A(4, 5) and B(9, 7). What is the slope of ?

–

StartFraction 2 Over 5 EndFraction

StartFraction 5 Over 2 EndFraction

Debi walks laps around the mall for exercise during the winter months. The table represents the number of steps recorded on her pedometer as she walks laps around the mall one day.

Debi walks 1,875 steps per lap around the mall.

One lap around the mall is equal to 2,425 steps.

One lap around the mall is equal to 4,300 steps.

Debi walks 6,175 steps per lap around the mall.

Which relationship has a zero slope?

Option

At work, Brett must check and record the internal temperature of the freezer on an hourly basis. When working properly, the temperature should remain constant over time. What word describes the slope of a line showing the temperature of the freezer as a function of time in hours when the freezer is working properly?

positive

zero

negative

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The graph of a linear function is shown.

positive

negative

zero

undefined

The table shows the height of water in a pool as it is being filled.

The height of the water increases 2 inches per minute.

The height of the water decreases 2 inches per minute.

The height of the water was 2 inches before any water was added.

The height of the water will be 2 inches when the pool is filled.

The graph represents the balance on Harrison’s car loan in the months since purchasing the car.

The loan balance decreases $500 per month.

Harrison makes a monthly payment of $250.

The loan balance increases $250 per month.

Harrison increases his monthly payment by $500 each month.

What phrases can be used to describe the line representing the relationship between the number of balloons remaining and the number of hats created? Select three options.

positive slope

negative slope

constant slope

increasing function

decreasing function

Which function shows a fabric with a price of $1.25 per square yard?

A table showing Price of Fleece with five columns and two rows. The first row, Square Yards, has the entries, 1, 2, 3, 4. The second row, Price, has the entries, $1.25, $2.00, $2.75, $3.50.

A table showing Price of Fleece with five columns and two rows. The first row, Square Yards, has the entries, 1, 2, 3, 4. The second row, Price, has the entries, $0.25, $1.25, $2.25, $3.25.

A coordinate plane showing Price of Fleece. The x-axis shows Number of Square Yards and the y-axis shows Price in dollars. A line starts at (0, 0) and passes through (5, 4) and ends (10, 8).

A coordinate plane showing Price of Fleece. The x-axis shows Number of Square Yards and the y-axis shows Price in dollars. A line starts at (0, 0) and passes through (4, 5) and ends (8, 10).

Which graph has a slope of ?

Option

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