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Mathematics 18 Online
OpenStudy (mrcoolguy):

please help :)

OpenStudy (mrcoolguy):

OpenStudy (mrcoolguy):

@satellite73

OpenStudy (mrcoolguy):

@AnimalLover8

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (mrcoolguy):

C???

OpenStudy (skullpatrol):

What makes you say C?

OpenStudy (mrcoolguy):

almost all answers are C

OpenStudy (skullpatrol):

That would make multiple choice questions too easy :-)

OpenStudy (skullpatrol):

What other ideas do you have?

OpenStudy (mrcoolguy):

A

OpenStudy (skullpatrol):

Why A?

OpenStudy (mrcoolguy):

idk

OpenStudy (skullpatrol):

Math is all about knowing why my friend :-)

OpenStudy (mrcoolguy):

but i'm bad at knowing why and math

OpenStudy (skullpatrol):

It takes patience and a lot of practice.

OpenStudy (skullpatrol):

Let's begin with a definition, ok?

OpenStudy (mrcoolguy):

ok

OpenStudy (skullpatrol):

What is a solution of an equation mean?

OpenStudy (mrcoolguy):

idk

OpenStudy (skullpatrol):

A solution of an equation is any value of a variable that makes the equation a true statement. Read that^ carefully please, do you understand what it means?

OpenStudy (mrcoolguy):

brb one sec

OpenStudy (aklabeast):

Do you still need help with the problem.

OpenStudy (mrcoolguy):

yes

OpenStudy (skullpatrol):

What that means is you replace the variables with numbers and see if you get a true statement

OpenStudy (mrcoolguy):

ok

OpenStudy (skullpatrol):

Look at $$\Huge y=5x-1$$

OpenStudy (skullpatrol):

Replace x and y with values from the table and see if you get a true statement?

OpenStudy (aklabeast):

skullpatrol is right. x is the variable on the left. You plug it into the equation. Try all of them out and see what you get. :) :) :) Let me know if you want some websites to help you out.

OpenStudy (skullpatrol):

( 0, -1 ) means replace x with 0 and replace y with -1.

OpenStudy (mrcoolguy):

can i see some websites

OpenStudy (mrcoolguy):

ok so 0=5-1 -1

OpenStudy (mrcoolguy):

1=34+3

OpenStudy (skullpatrol):

y = 5x - 1 -1 =?= 5•(0) - 1

OpenStudy (mrcoolguy):

i'm so confused

OpenStudy (aklabeast):

Ask away

OpenStudy (mrcoolguy):

-1 =? what goes here but there is nothing else = 5•(0) - 1

OpenStudy (skullpatrol):

This =?= means "is this equation true"

OpenStudy (skullpatrol):

What does 5•(0) - 1 equal?

OpenStudy (mrcoolguy):

4.0 or 5.-1

OpenStudy (skullpatrol):

5 times 0 minus 1

OpenStudy (mrcoolguy):

4

OpenStudy (skullpatrol):

5•0 = 0

OpenStudy (skullpatrol):

0 – 1 = -1

OpenStudy (skullpatrol):

Does -1 = -1

OpenStudy (mrcoolguy):

yea

OpenStudy (skullpatrol):

Do you see what I did there?

OpenStudy (mrcoolguy):

yes

OpenStudy (skullpatrol):

So that means A is the answer :-)

OpenStudy (aklabeast):

NO disrespect to skullpatrol but I would solve it differently. It isn't that hard. All you have to do is take the equation and plug in the x to the number that is next to x. Look at the drawing.|dw:1460085446351:dw|

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