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Mathematics 16 Online
ganeshie8 (ganeshie8):

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ganeshie8 (ganeshie8):

@shandapanda

ganeshie8 (ganeshie8):

Point : (-1, 5) Slope : m = -1

ganeshie8 (ganeshie8):

remember point slope form of line :- If, Point : \((x_1, y_1)\) Slope : \(m\) then, equation of Line : \(y-y_1 = m(x - x_1)\)

ganeshie8 (ganeshie8):

Point : \((-1, 5)\) Slope : \(-1\) equation of Line : \(y-y_1 = m(x - x_1)\) \(y-5 = -1(x - - 1)\) \(y-5 = -1(x + 1)\) \(y-5 = -x - 1\) \(y = -x + 4\)

ganeshie8 (ganeshie8):

see if that makes some sense

OpenStudy (anonymous):

not at all!!!!!!!

ganeshie8 (ganeshie8):

its okay, hang on. lets do next problem

OpenStudy (anonymous):

Find the equation of a line given the point and slope below. Arrange your answer in the form y = mx + b, where b is the constant. (-1, 0) m = -2

ganeshie8 (ganeshie8):

equation of line : \(y - y_1 = m(x - x_1)\)

ganeshie8 (ganeshie8):

(-1, 0) x1 y1

ganeshie8 (ganeshie8):

plug these in above equation, and tell me wat u get

OpenStudy (anonymous):

y-0=m(x+1)

ganeshie8 (ganeshie8):

Awesome :) plug the given \(m\) value also

OpenStudy (anonymous):

y-0=-2(x+1)

ganeshie8 (ganeshie8):

looks perfect, we're done mostly. just change it and make it look like the asked form : y = mx + b

OpenStudy (anonymous):

its 2:01 in the morning i can hardly lift my hands...

ganeshie8 (ganeshie8):

y-0 = -2(x+1) y = -2x - 2 DONE.

ganeshie8 (ganeshie8):

you should sleep girl

OpenStudy (anonymous):

yeai havent dont math work because i was stuck on this for WEEKS and my internet wasnt working!

OpenStudy (anonymous):

Find the equation of a line given the point and slope below. Arrange your answer in the form y = mx + b, where b is the constant. (5, 5) m = -3

ganeshie8 (ganeshie8):

ohkie

OpenStudy (anonymous):

y-5=-3(x-5)

ganeshie8 (ganeshie8):

Yes ! distribute -3 right side

ganeshie8 (ganeshie8):

y-5=-3(x-5) y-5 = -3x + 15

ganeshie8 (ganeshie8):

next, add 5 to both sides

ganeshie8 (ganeshie8):

y = -3x + 20

OpenStudy (anonymous):

Find the equation of a line given the point and slope below. Arrange your answer in the form y = mx + b, where b is the constant. (2, 1) m = 0

OpenStudy (anonymous):

y-1=0(x-2)

ganeshie8 (ganeshie8):

Yes ! next what

OpenStudy (anonymous):

y-1=-0?

ganeshie8 (ganeshie8):

Yes ! y-1 = 0 y = 1

OpenStudy (anonymous):

Find the equation of a line given the point and slope below. Arrange your answer in the form y = mx + b, where b is the constant. (7, 1) m = 10

OpenStudy (anonymous):

ok sooooo..... y-1=10(x-7)

ganeshie8 (ganeshie8):

Correct

OpenStudy (anonymous):

y-1=10x-70

ganeshie8 (ganeshie8):

Correct ! add 1 both sides, so that it looks like y = mx + b

OpenStudy (anonymous):

y=10x+71?

OpenStudy (anonymous):

or y=11x+70?

ganeshie8 (ganeshie8):

noo its -70 on right side

ganeshie8 (ganeshie8):

you cant add coconuts and oranges ok

ganeshie8 (ganeshie8):

y-1=10x-70 +1 +1 y = 10x - 69

OpenStudy (anonymous):

ohhhhh

ganeshie8 (ganeshie8):

Cuz, -70 + 1 = -69

ganeshie8 (ganeshie8):

:)

OpenStudy (anonymous):

Find the equation of a line given the point and slope below. (6, 6) no slope

OpenStudy (anonymous):

?!

ganeshie8 (ganeshie8):

No slope means, its a vertical line :- x = k

ganeshie8 (ganeshie8):

x = 6

OpenStudy (anonymous):

Find the equation of a line given the point and slope below. Arrange your answer in the form y = mx + b, where b is the constant. (10, 11) m = -9

OpenStudy (anonymous):

y-11=-9(x-11) y-11=-9x-99 y=-9x-88

ganeshie8 (ganeshie8):

slight mistake

ganeshie8 (ganeshie8):

y-11=-9(x-\(\color{red}{10}\)) y-11=-9x\(\color{red}{+90}\) y=-9x + 101

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