- #1

Abdullah Qureshi

- 16

- 0

y= 2x-1

**y = x^2+ 2**

x –y = 1

x = y + 5

y = – x^2 + 5

pls help me

x –y = 1

x = y + 5

y = – x^2 + 5

pls help me

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- MHB
- Thread starter Abdullah Qureshi
- Start date

- #1

Abdullah Qureshi

- 16

- 0

y= 2x-1

x –y = 1

x = y + 5

y = – x^2 + 5

pls help me

- #2

- #3

Abdullah Qureshi

- 16

- 0

Can you without the graphYou’ve posted the equations for three lines and two parabolas.

I have no idea what you are asking with regard to a circle.

Please translate the original problem to English and post it.

https://www.physicsforums.com/attachments/11038

- #4

skeeter

- 1,104

- 1

Do what?

- #5

skeeter

- 1,104

- 1

Are you asking which of the five equations are lines?

- #6

HOI

- 923

- 2

I don't understand what "to circle an equation in a straight line".how to circle a equation in a straight line

means.

This is the equation of a straight line.y= 2x-1

This is the equation of a parabola.y = x^2+ 2

This is the equation of a straight line.x –y = 1

This is the equation of a straight line.x = y + 5

This is the equation of a parabola.y = – x^2 + 5

There are NO circles.pls help me

- #7

phymat

Gold Member

MHB

- 170

- 687

It possibly means to encircle the equations forming straight lines.

- #8

Abdullah Qureshi

- 16

- 0

Without making a graph. It can be use as simple way like trigonometryDo what?

- #9

phymat

Gold Member

MHB

- 170

- 687

The second and the last equations posted above have exponents, so they are not forming straight lines. The rest of them are. You can

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