What is the formula to calculate the gradient between two points?

• (x2 + x1) / (y2 + y1)

• (y2 + y1) / (x2 + x1)

• y2 - y1 / x2 - x1

• x2 - x1 / y2 - y1

If the coordinates of two points are (2, -7) and (5, 2), what is the gradient of the line connecting them?

• 1.5

• 3

• -3

• 0.67

How do you correctly find the midpoint between two points?

• Subtract the x-coordinates and y-coordinates

• Average the x-coordinates and y-coordinates separately

• Multiply the x-coordinates and divide by y-coordinates

• Add the x-coordinates and subtract the y-coordinates

Which theorem is used to calculate the distance between two points?

• Fundamental theorem of algebra

• Pythagorean theorem

• Theorem of calculus

• Binomial theorem

What is the distance between the points (2, -7) and (5, 2) using the Pythagorean theorem?

• 3√10

• √13

• 10

• 5