grade 8 math review

Front

What is the rate of change?

Back

The rate of change is a measure of how much a quantity changes in relation to another quantity. In this case, the rate of change is 5.

Front

Identify the transformation from ABC to A'B'C'.

Back

The transformation is a reflection across the y-axis.

Front

Find the missing side of a triangle with sides 48 and 72.

Back

The missing side is 72.

Front

What is the slope of the equation y = 4 + 2x?

Back

The slope is 2.

Front

Find the slope of the line that passes through the points (1, 2) and (3, 0).

Back

The slope is -1.

Front

What is the formula for the slope of a line?

Back

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

Front

Define reflection in geometry.

Back

Reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

What is the difference between rotation and reflection?

Back

Rotation turns a figure around a point, while reflection flips it over a line.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do 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.