Finding The Equation Of A Line Through 2 Points PART 2

What is the first step in finding the equation of a line through two points?

• Determine the midpoint

• Find the gradient

• Calculate the y-intercept

• Use the quadratic formula

How do you calculate the gradient of a line given two points?

• Add the x-coordinates and y-coordinates

• Divide the difference in y-coordinates by the difference in x-coordinates

• Multiply the x-coordinates by the y-coordinates

• Subtract the x-coordinates from the y-coordinates

What is the gradient of the line passing through the points (2, 10) and (5, 1)?

• 3

• -9

• -3

• 9

Once the gradient is found, what is the next step in forming the equation of the line?

• Find the midpoint

• Calculate the y-intercept

• Solve for x

• Determine the slope

What is the y-intercept of the line with the equation y = -3x + 16?

• 3

• -3

• 16

• -16