1.
The variables x and y are connected by the equation y = 2x2 - 4x - 1.
Mathematics, 18.01.2021 19:20 Oneandonlybabygirl
Exercise 1
8,9
1.
The variables x and y are connected by the equation y = 2x2 - 4x - 1.
Complete the table for y = 2x2 - 4x - 1.
3
4
-2
-1
2
0
1
у
(ii) Draw the graph of y = 2x2 - 4x – 1 for -2<x< 4.
Hiii) Hence, solve the equation 2x2 - 4x – 1 = 0.
2. By drawing the graph of y = 7 – 4x - 3x2 for -3 < x < 2, solve the equation
7 - 4x – 3.x2 = 0 graphically.
Answers: 1
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Exercise 1
8,9
1.
The variables x and y are connected by the equation y = 2x2 - 4x - 1.
1.
The variables x and y are connected by the equation y = 2x2 - 4x - 1.
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