Waec 2021 Mathematics Question 7

Practice essay / theory question 7 from the 2021 Waec Mathematics examination. This question covers General .

Waec 2021 Mathematics Essay / Theory

Topic: General

Question 7 WAEC • 2021 • MATHEMATICS • essay

Question Parts

( a )

Copy and complete the table of values for the relation \( y=2 x^{2}-x-2 \) for \( -4 \leq x \leq 4 \).\(\begin{array}{|c|c|c|c|c|c|c|c|c|c|}\hline x & -4 & -3 & -2 & -1 & 0 & 1 & 2 & 3 & 4 \\ \hline y & & 19 & & & -2 & & & & 26 \\ \hline\end{array}\)

( b )

Using a scale of 2 cm to 1 unit on the \( x \)-axis and 2 cm to 5 units on the \( y \)-axis, draw the graph of \( y=2 x^{2}-x-2 \) for \( -4 \leq x \leq 4 \).

( c )

On the same axes, draw the graph of \( y=2 x+3 \).

( d )

Use the graph to find the: (i) roots of the equation \( 2 x^{2}-3 x-5=0 \)

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About This Question

This is Waec 2021 Mathematics Question 7. It is one of the essay questions from the 2021 Waec Mathematics examination.

The question covers General .

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