Understanding Straight Line Formulas

This tutorial covers the formulae associated with straight lines, including calculating the gradient, midpoint, and distance between two points. It explains the gradient formula as the difference in Y values over the difference in X values, the midpoint as the average of the coordinates, and the distance using Pythagoras' theorem. The tutorial provides examples to illustrate each concept.

What is the primary focus of this tutorial?

• Trigonometric identities

• Quadratic equations

• Straight line formulas

• Circle theorems

How is the gradient between two points calculated?

• Sum of x-coordinates divided by sum of y-coordinates

• Product of x and y coordinates

• Sum of x and y coordinates

• Difference in y-values divided by difference in x-values

Which of the following is a common mistake when calculating the midpoint?

• Using the wrong formula for gradient

• Subtracting the coordinates instead of adding

• Dividing by 3 instead of 2

• Multiplying the coordinates

Which formula is used to find the middle point between two given points?

• Midpoint formula

• Distance formula

• Gradient formula

• Quadratic formula

What is the formula used to find the distance between two points?

• Sum of the coordinates

• Difference of the coordinates

• Pythagorean theorem

• Midpoint formula

In the example problem, what is the gradient of the line between the points (2, -7) and (5, 2)?

• 4

• 3

• 2

• 1

What is the midpoint of the points (2, -7) and (5, 2)?

• (0, 0)

• (3.5, -2.5)

• (2, 5)

• (7, -5)

How is the distance between the points (2, -7) and (5, 2) calculated?

• Using the midpoint formula

• Using the sum of coordinates

• Using the Pythagorean theorem

• Using the gradient formula

What is the simplified form of the distance between the points (2, -7) and (5, 2)?

• 3√10

• √90

• 9

• 10

What is the result of applying the gradient formula to the points (2, -7) and (5, 2)?

• 1

• 2

• 3

• 4