Question

5. Construa, no plano cartesiano a seguir, o grafico da funcao y = 2x - 1. Para isso, você deverá: escolher 5 valores para x; calcular os valores de y correspondentes; preencher completamente o quadro abaixo; e, em seguida, marcar os pontos correspondente no plano.

Answer 1

SOLUTION

TO DETERMINE

Construct the graph of the function y = 2x - 1 in the following Cartesian plane

For this, you should: choose 5 values for x

Calculate the corresponding y values; completely fill in the table below; and then mark the corresponding points on the plane.

EVALUATION

Here we have to draw the graph of the function y = 2x - 1 in the following Cartesian plane

Graph : Graph is referred to the attachment

Now we take 5 values of x say - 2 , - 1 , 1 , 2 , 3

For x = - 2 we have y = - 4 - 1 = - 5

The point is ( - 2 , - 5 )

For x = - 1 we have y = - 2 - 1 = - 3

The point is ( - 1 , - 3 )

For x = 1 we have y = 2 - 1 = 1

The point is ( 1 , 1 )

For x = 2 we have y = 4 - 1 = 3

The point is ( 2 , 3 )

For x = 3 we have y = 6 - 1 = 5

The point is ( 3 , 5 )

In the graph the points ( - 2 , - 5 ) , ( - 1 , - 3 ) , ( 1 , 1 ) , ( 2 , 3 ) , ( 3 , 5 ) is represented by the points A , B , C D , E respectively

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