Mathematics 0580 · IGCSE · Graphs of functions

Graphs of functions — practice question

(a(i))[2]

Find the equation of line $L$. Give your answer in the form $y = mx + c$.

(a(ii))[1]

On the grid, draw the line $y = 1$.

(a(iii))[1]

Write down the coordinates of the point where the two lines meet.

(b(i))[2]

Complete the table of values for $y = x^2 + x - 8$.

(b(ii))[4]

On the grid, draw the graph of $y = x^2 + x - 8$ for $-4 \le x \le 4$.

(b(iii))[1]

Write down the equation of the graph's line of symmetry.

(b(iv))[2]

Use your graph to solve the equation $x^2 + x - 8 = 0$.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: The line is $y=1.5x-2$.

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