Edexcel IGCSE Math A 3.3.H straight-line equations

Practise straight-line questions by reading the gradient and intercept from a graph or using a given gradient and point to build y = mx + c.

Exam points

Find an equation of a drawn line in the form y = mx + c from gradient and intercept.
Write a straight-line equation when given the gradient and a point such as (0, 5).

[Maximum number: 2]

The diagram shows the graph of y=f(x) for $-4 \leqslant x \leqslant 12$

Figure for Question 3.3.H Straight-line graphs in the form y = mx + c question 1 — Edexcel IGCSE Math A Higher

The point P on the curve has x coordinate 2

Hence find an equation of the tangent to the curve at P.

Give your answer in the form y=m x+c

The equation f(x)=k has exactly two different solutions for $-4 \leqslant x \leqslant 12$

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3.3.H Straight-line graphs in the form y = mx + c question 1