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Mathematics 10 Online
OpenStudy (anonymous):

please help me !!

OpenStudy (anonymous):

OpenStudy (anonymous):

page 127 number 9

OpenStudy (anonymous):

can anyone help?

OpenStudy (anonymous):

Can you find the gradient and intercept..

OpenStudy (anonymous):

noope

OpenStudy (anonymous):

??

OpenStudy (anonymous):

I'd be so happy if you could help

OpenStudy (anonymous):

To find the gradient plug the values to this.. \[Gradient=\frac{\Delta y}{\Delta x}=\frac{\Delta y_{1}-\Delta y_{2}}{\Delta x_{1}-{\Delta x_{2}}}\]

OpenStudy (anonymous):

okay then what

OpenStudy (anonymous):

i cant find out the gradient :(

OpenStudy (anonymous):

So\[Gradient=\frac{5+1}{3-0}=\frac{6}{3}=2\]

OpenStudy (anonymous):

yep I get that bit

OpenStudy (anonymous):

what would the y intercept be then ?

OpenStudy (anonymous):

Now you have m in y=mx+c..Now you could clearly what the intercept is..It's the point at which y axis intersect...

OpenStudy (anonymous):

is the y intercept 0?

OpenStudy (anonymous):

Nope it's 5...

OpenStudy (anonymous):

oh i see :D

OpenStudy (anonymous):

thankyou for your help :)

OpenStudy (anonymous):

U are welcome!!

OpenStudy (anonymous):

sorry to bother you again! how would i rearrange this equation to make x the subject? y=1/2x+1

OpenStudy (anonymous):

???????

OpenStudy (anonymous):

Move x to the right side and y to the left..

OpenStudy (anonymous):

so it would be x=1/2y+ 1 or 1/2x=y+1

OpenStudy (anonymous):

When you move the signs change.. a = 2b + 1 -2b=-a+1

OpenStudy (anonymous):

can you tell me the answer so i can check what ive written

OpenStudy (anonymous):

\[x=2(y-1)\]

OpenStudy (anonymous):

thankyou

OpenStudy (anonymous):

No problem.. :)

OpenStudy (anonymous):

so what would x+2y=6 making y the saubject be

OpenStudy (anonymous):

\[x+2y=6\]\[x+2y-x=6-x\]\[2y=6-x\]\[\frac{2y}{2}=\frac{(6-x)}{2}\]\[y=\frac{(6-x)}{2}\]

OpenStudy (anonymous):

thankyou

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