Math STAAR Chart Review

Which is NOT an example of a non-proportional equation?

• y=mx+b

• y=2x-2

• y=kx

• y=1/2x+1/2

When you see the phrase "direct variation" in a problem, what method should you use to solve it? Example: If y varies directly with x and y = 12 when x = 4, find y when x = 7.

• Setup and solve a proportion.

• Use the Pythagorean Theorem

• Find the area of the base.

• Use the vertical line test.

Which is NOT a correct way of finding the slope of a graph?

• Choose 2 points and use the STAT/EDIT option on your calculator.

• Look where the line crosses the y-axis.

How do you calculate the area of a triangle?

• A = bh

• A = 1/2bh

How do you calculate the radius if you are given the diameter?

• Divide the diameter by 2.

• Multiply the diameter by 2.

• You don't need the radius.

• Add 2 to the diameter.

When calculating the surface area of a rectangular prism, how do you calculate the variable B?

• Find the area of the base by multiplying b*h

• Find the perimeter of the base by adding all sides of the base together.

• Find the height of the prism.

• Find the radius of the circle.

When calculating the lateral surface area of a cylinder, which formula should you use?

• S = Ph

• V = Bh

When you are calculating the volume of a cylinder, which formula should you use to solve for the variable B?

• h

• 1/2bh

How should you calculate the volume of a sphere?

• V = 1/3bh

• V = Bh

If you are asked to calculate the distance between 2 points on a graph, what method should you use to solve it?

• Create a right triangle and use the Pythagorean Theorem.

• Find the slope between the 2 points.

• Guess.

• Find the area of the shape.