STAAR 8th Grade Math Formula Chart

Front

What is the Slope-Intercept form of a linear equation?

Back

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

Front

What is Direct Variation?

Back

A relationship between two variables where one is a constant multiple of the other, expressed as y = kx.

Front

What is the formula for the Volume of a Cone?

Back

V = (1/3)πr²h, where r is the radius and h is the height.

Front

What is the formula for the Lateral Surface Area of a Cylinder?

Back

A = 2πrh, where r is the radius and h is the height.

Front

What is the Pythagorean Theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What does 'm' represent in the equation y = mx + b?

Back

The slope of the line, indicating the steepness and direction.

Front

What does 'b' represent in the equation y = mx + b?

Back

The y-intercept, the point where the line crosses the y-axis.

Front

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

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the formula for the area of a triangle?

Back

A = (1/2)bh, where b is the base and h is the height.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.