Linear Equations, Interval Notation, Domain, Range

The point where the graph crosses the x-axis.

• y-intercept

• x-intercept

• point intercept

• all intercept

Write the solution to the system.

Write the domain for the graph in interval notation.

• [-2,4]

• -2≤x≤4

• [-4,6]

• -4≤x≤6

If solving the system by elimination, what would you multiply the second equation by to eliminate y?

• 6

• -6

• 2

• -2

A system consists of the equations y = 4x - 20 and y = -x - 5. What is the solution?

• (3,-8)

• (-5,8)

• (0,-2)

• (-2,-28)

• None of the above

What is the range of the function?

• -3<x≤1

• -3<y<2

• -4≤y≤3

• -3≤y≤2

What is the RANGE of the function?

• (-∞, +∞)

• (-∞, 4]

• (-∞, 4)

• [0, 4]

What is the correct interval notation for the domain of the green piece of this function?

• (-2, 1)

• [-2, 1]

• (-2, 1]

• [-2, 1)

What is the DOMAIN?

• (-∞, +∞)

• (-∞, -1] U [3, +∞)

• [-1, +∞)

• (-∞, -1) U (-1, +∞)

Select ALL the statements that are true.

• The constant interval is [-4, 2]

• The interval of increase is (-6, -4)

• The interval of decrease is (-9, -6) U (2, ∞)

• There is a discontinuity at x = 2

• The range is (-∞, 8)