8th STAAR Reference Sheet

What is the slope-intercept form?

• y=mx+b

• y= k/x

• k= y/x

• m = (y2-y1) / (x2 - x1)

What is direct variation?

• y = mx+b

• y = kx

• k = yx

• m = (y2-y1) / (x2-x1)

How do you find the slope of a line?

• y = mx + b

• y = kx

• m = (y2-y1) / (x2 - x1)

• A = bh

What is the formula for circumference?

• A = bh

• C = Bh

• C = 2(pi)(r)

• C = (pi)r²

What is the formula for Area of a Triangle?

• A = bh

• V = Bh

• A = 1/2 bh

• A = (pi)r²

What is the formula for Area of a Rectangle?

• A = 1/2 bh

• A = 1/2 (b1+b2)h

• A = (pi)r²

• A = bh

What is the formula for Area of a Circle?

• A = (pi)r²

• A = Bh

• S = Ph

• S = 2(pi)rh

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

• S = Ph + 2B

• S = Ph

• S = 2(pi)rh

• S = 2(pi)rh + 2B

What is the formula for lateral surface area of a cylinder?

• S = Ph

• S = Ph + 2B

• S = 2(pi)rh + 2B

• S = 2(pi)rh

What is the formula for volume of a prism or cylinder?

• V = 1/3Bh

• V = Bh

• V = 4/3(pi)r³

• V = Ph