Math 8 Q2 Review

Front

What is the solution for r in the equation that results in r = 10?

Back

r = 10 is the solution to the equation.

Front

What is the y-intercept of a line represented by the point (0, -25)?

Back

The y-intercept is the point where the line crosses the y-axis, which is (0, -25).

Front

Between which two consecutive integers does the value of \(\sqrt{20}\) lie?

Back

\(\sqrt{20}\) is between 4 and 5.

Front

How do you determine the slope of a line if it is given as -3/4?

Back

The slope of a line indicates its steepness and direction; -3/4 means the line descends from left to right.

Front

What is the term for the original figure before a transformation?

Back

The original figure is called the Pre-image.

Front

Define the term 'slope' in the context of a linear equation.

Back

The slope is a measure of the steepness of a line, calculated as the rise over run.

Front

What does the point (0, 5) represent in a graph?

Back

(0, 5) represents a point on the y-axis where the line crosses at y = 5.

Front

How can you find the y-intercept of a linear equation?

Back

To find the y-intercept, set x = 0 in the equation and solve for y.

Front

What is the significance of the slope being negative in a linear equation?

Back

A negative slope indicates that as x increases, y decreases, showing a downward trend.

Front

What is the formula for calculating the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated as \(m = \frac{y2 - y1}{x2 - x1}\).