GCSE Maths Practice: graphs-of-linear-functions

Question 4 of 10

This question asks which equations match a line through two points.

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\( \text{Which equations match the line through } (1, 2) \text{ and } (5, 10)? \)

Select all correct options:

\( y = 2x \) \( y = 2x + 1 \) \( y = x + 1 \) \( y = -2x \)

Calculate the gradient first, then substitute a point to find the equation.

Gradient = change in y / change in x. Use point-slope form y - y1 = m(x - x1).