What are the slope and y-intercept of the equation $$y\ =\ \frac{2}{3}x\ -\ 1$$ ?

slope: $$\frac{2}{3}$$ ; y-intercept: (0, -1)

slope: $$\frac{2}{3}$$ ; y-intercept: (-1, 0)

slope: -1; y-intercept: (0, $$\frac{2}{3}$$ )

slope: -1; y-intercept: ( $$\frac{2}{3}$$ , 0)

This graph shows the relationship between the height of a plant, in inches, and the time, in months, that it grows. Which of the following statements is true?

The plant was 6 inches when it was planted.

From 4 months to 8 months, the height of the plant doubled.

Each month, the plant grows 2 inches.

In 10 months, the height of the plant will be 20 inches

Triangle Q’R’S’ was the result of a transformation on triangle QRS, centered at the origin, both shown above. Describe the transformation:

Dilation by a scale factor of 3

Dilation by a scale factor of $$\frac{1}{3}$$

Translation 3 units to the right

Rotation of 90° about the origin

What statement about the chart is true?

It is a function because for each input, there is one and only one output

It is a function because all of the y-values are odd

It is not a function because all of the y-values are odd

It is not a function because all of the x-values are in order from least to greatest

A bicycle club went on a six-hour ride. The graph below shows the relationship between the number of hours spent on the trails and the number of miles traveled. Which statement best interprets information provided by the graph?

The club members stopped for a rest during their ride

The club members rode at a constant speed for entire ride

The number of miles traveled decreased continuously throughout the ride

The club members travelled for 50 hours.

8 - Mini Final Review

Authored by Annette Tekverk

Mathematics

8th Grade

CCSS covered

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8 - Mini Final Review

This graph shows the relationship between the height of a plant, in inches, and the time, in months, that it grows. Which of the following statements is true?

Parallel lines l and m are intersected by transversal t as shown below. If angle 3 measures 75°, what is the measure of angle 7?

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This graph shows the relationship between the height of a plant, in inches, and the time, in months, that it grows.
Which of the following statements is true?