8th grade math formulas

What is the formula for finding the volume of a sphere?

• V = 4/3πr³

• V = Bh

• V = 1/3πr²

• V = πr²

The pythagorean theorem is:

• y = mx + b

• a² + b² = c²

• Ax + By = C

What is the rule notation for a reflection across the y-axis?

• (x,y) »»» (-x,y)

• (x,y) »»» (x,-y)

• (x,y) »»» (-x,-y)

• (x,y) »»» (y,-x)

What is the volume formula for a cylinder?

• V = 1/3πr²

• V = bwh

• V = πr²h or V=Bh

• V = 4/3πr³

What is the slope (aka "Rate of Change") formula?

• Rise/Run

• X_{1 +} X₂ / Y₁ + Y₂

• Y₂ - Y₁ / X₁ - X₂

• Y₂ - Y₁ / X₂ - X₁

Rule Notation for a rotation of 90°?

• (x,y) »»» (-x,-y)

• (x,y) »»» (-y,x)

• (x,y) »»» (y,-x)

• (x,y) »»» (4x,4y)

What is the slope-intercept form?

• y-y₁ = m(x-x₁)

• y = x

• y = mx + b

• Ax + By = C

What is the volume formula of a cone?

• V = 1/3πr²h

• V = 4/3πr³

• V = Bh

• V = bwh

What is the rule notation for a rotation 270°?

• (x,y) »»» (-y,x)

• (x,y) »»» (y,-x)

• (x,y) »»» (-y,-x)

• (x,y) »»» (y,x)

What is the rule notation for a reflection across the x-axis?

• (x,y) »»» (y,-x)

• (x,y) »»» (1x,1y)

• (x,y) »»» (-x,-y)

• (x,y) »»» (x,-y)