Question

Write the equation of a line in point-slope form that has a slope of and passes through the point (2, -7).

Answer 1

what's the slope?

Answer 2

it dont give me a slope

Answer 3

dy/dx gives the slope: so if the points are (2,-7) and (x,y) then the slope is given by:
y- (-7)/ x-2
=(y+7)/(x-2)
to get the equation you have to equate this to a given slope which unfortunately you weren't provided with

Answer 4

sorry the slope is 2/3

Answer 5

then just equate (y+7)/(x-2) to 2/3

Answer 6

u aint makin sense

Answer 7

OK step by step:
(y+7)/(x-2) =2/3
cross multiply;
2(x-2) = 3(y+7)
2x-4 =3y+21
2x-3y = 25
remember equation of a line is given as y =mx +c where m is the gradient and c the intercept
so 2x-3y = 25 becomes
-3y = 25 - 2x
3y = 2x -25
y = 2/3x - 25/8
is that clearer?

Answer 8

thank you thank you thank you now i understand pedro

Answer 9

welcome