Linear graphs and their applications

What is the graph of y = 2x + 1?

• 1 A parabola
• 2 A straight line
• 3 A circle
• 4 A curve through the origin only

What is the y-intercept of y = 3x + 4?

• 1 3
• 2 0
• 3 -4
• 4 4

What is the slope of the line y = 5x - 2?

• 1 -5
• 2 -2
• 3 2
• 4 5

What is the distance between the points (0, 0) and (3, 4)?

• 1 12
• 2 7
• 3 1
• 4 5

What is the midpoint of (2, 4) and (6, 10)?

• 1 (4, 6)
• 2 (4, 7)
• 3 (8, 14)
• 4 (3, 5)

The point where a line cuts the x axis has:

• 1 x = 1
• 2 x = 0
• 3 y = 0
• 4 x = y

The coordinates of the origin are:

• 1 (1, 1)
• 2 (1, 0)
• 3 (0, 1)
• 4 (0, 0)

The point (3, -2) lies in the:

• 1 First quadrant
• 2 Second quadrant
• 3 Fourth quadrant
• 4 Third quadrant

The slope of a horizontal line is:

• 1 1
• 2 Undefined
• 3 0
• 4 -1