Question

1. Calcula quatre solucions diferents de l'equació x – y = 5 , representa els punts amb ajuda d'uns eixos, i comprova que tots estan sobre una mateixa recta

Answer 1

Hence 4 different points are as

A(1,-4) ,B(2,-3) ,C(3,-2) D(4,-1)

Explanation:

Given:

A line represents as x-y=5

To Find:

4 different points on that line with.

Solution:

Now calculate the points on both axes in order to draw the line .

So Put x=0 then y=-5

And when y= 0, x=5

Two points are (0,-5) and (5,0)

Hence draw line through this point and obtain the other two points by plotting on graph as follows:

(Refer the attachment)

Here the line is 4th quadrant so x will positive and y will negative

And addition of both should result in 5

1) Consider As x=1 then,

y=x-5=1-5=-4

y=-4

Point will be (1,-4)

2)consider As x=2 then

y=x-5=2-5=-3

y=-3

Point will be (2,-3)

3)Consider As x=3 then

y=x-5=3-5= -2

y=-2

Point will be (3,-2)

4) Consider AS x=4 then

y=x-5=4-5=-1

y=-1

Point will be (4,-1)