Intro to Linear Equations and Coordinates

 A line has an equation of y = - 3x + 8.  What is the y-intercept of the line?  Please enter your answer as a coordinate (x, y).

• (0, -3)
• (0, 3)
• (0, -8)
• (0, 8)

A line has an equation of y = - 5x - 10.  What is the gradient of the line?

• -5
• -10
• 5x
• 10

What does "m" represent in
y = mx + c?

• y-intercept
• gradient
• x-coordinate
• y-coordinate

What does "c" represent in
y = mx + c?

• y-intercept
• x-coordinate
• x-intercept
• gradient

Look at the graph.  Write down the equation for the line.

• y = - x + 3
• y = 4x + 3
• y = ¹/₄ x + 3
• y = - 4x + 3

If m=3 and c=6, what is the correct equation?

• y = 3 - 6
• y = 3x - 6
• y = 3x + 6
• y = 6x + 3

Write the equation for this graph? 

• y = - 10x + 60
• y = - 5x + 60
• y = - ¹/₂ x + 60
• y = - x + 60

Write the equation of a line where the gradient is 0 and the y-intercept is 8.

• y = 8x
• x = 8
• y = 8
• y = x + 8

Where do these two lines intersect?

• No solution
• (-2, 3)
• (3, -2)
• (2, 3)

• y = 4x + 6

• y = -4x - 6

• y = 4x - 6

• y = -4x + 6