8th Grade Review

Front

What is the formula for the volume of a cone?

Back

Volume = (1/3) * π * r² * h, where r is the radius and h is the height.

Front

How do you find the slope of a line given two points?

Back

Slope (m) = (y2 - y1) / (x2 - x1). If x1 = x2, the slope is undefined.

Front

What is the equation of a line in slope-intercept form?

Back

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

Front

What does it mean if a slope is undefined?

Back

An undefined slope occurs when a line is vertical, meaning it does not have a defined rise over run.

Front

How do you solve the equation 4p = 16?

Back

Divide both sides by 4: p = 4.

Front

What is the volume of a 3D shape?

Back

The amount of space occupied by the shape, measured in cubic units.

Front

What is the difference between a rational and an irrational number?

Back

Rational numbers can be expressed as a fraction of two integers, while irrational numbers cannot.

Front

What is the formula for the volume of a rectangular prism?

Back

Volume = length * width * height.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis (x=0).

Front

How do you round a number to the nearest tenth?

Back

Look at the hundredths place; if it's 5 or more, round up.