8th Grade Review for District Benchmark #1

Front

What is the definition of slope in a coordinate plane?

Back

The slope of a line is a measure of its steepness, calculated as the ratio of the vertical change (rise) to the horizontal change (run) between two points on the line.

Front

How do you calculate the slope using two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula: m = (y2 - y1) / (x2 - x1).

Front

What is a linear function?

Back

A linear function is a function that can be graphically represented as a straight line, defined by the equation t = mx + b, where m is the slope and b is the y-intercept.

Front

What does the equation t = 10n + 25 represent in the context of saving money?

Back

This equation models the total amount of money (t) Melissa will have saved after n weeks, starting with $25 and earning $10 each week.

Front

How do you arrange numbers from greatest to least?

Back

To arrange numbers from greatest to least, compare their values and order them accordingly, starting with the highest value.

Front

What is the total surface area of a triangular prism?

Back

The total surface area of a triangular prism is the sum of the areas of its two triangular bases and the three rectangular sides.

Front

What is the formula for the surface area of a triangular prism?

Back

The surface area (SA) can be calculated using the formula: SA = base area + lateral area.

Front

What is the relationship between x and y in the equation y = 2x - 3?

Back

This equation represents a linear relationship where y changes by 2 for every 1 unit change in x, with a y-intercept of -3.

Front

What is the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, represented by the value of y when x = 0.

Front

How do you identify the slope and y-intercept from the equation y = mx + b?

Back

In the equation y = mx + b, m represents the slope and b represents the y-intercept.