Revision Unit 1-3

What value do we need to know in finding the volume of a sphere?

• Circumference

• Radius

• Diameter

• Perimeter

If the circular base of a cone has a radius s, what is the base area of this cone?

• π s

• π s²

• π r s

• π r s²

Which solid figure is one–third the volume of a cylinder of the same radius and height?

• Sphere

• Cube

• Pyramid

• Cone

The base is a polygon and all the lateral faces are

       triangles.

• Pyramid

• Cone

• Sphere

• Cube

The general form of linear equations in two variables.

• By³ + C = 0

• Ax² + Bx² + C = 0

• Ax + By + C = 0

• Ax³ + C = 0

Which of the following examples is a linear equation?

•       x³ + y = 0

• x + y = 10

• x³ + y³ = 0

• x² + y² = 0

What is the slope–intercept form of a linear equation?

• 9x – y = b

• 2x – 2y = b

• y = mx + b

• 2x + y = z

What is the point where the line crosses the x–axis?

• n – intercept

• m – intercept

• x – intercept

• y – intercept

When graphing, always use a __________ to connect the two points in order to make a straight line.

     

• ruler

• paper

• calculator

• compass

Which method is used to eliminate one of the unknowns by adding or subtracting the equations?

      

• Substitution

• Graphing

• Elimination

• Equating