Question

find an equation of the line containing the given pair of points.
(4,2) (12,7)
y=

Answer 1

first you need to find the gradient between the two points. can you find it?

Answer 2

no

Answer 3

its (y1-y2)/(x2-x1)

Answer 4

try that

Answer 5

when you get the gradient,m
you just pick one of the point and plug in the value in this equation:
y-y1 = m(x-x1)

Answer 6

i honestly dont get it

Answer 7

do you know how to do the problem ?

Answer 8

ok, to find the gradient(m), its (y1-y2)/(x1-x2),
so m = (2-7)/(4-12)

Answer 9

ok so how owuld you solve it for the equation

Answer 10

when you get the m which is 5/8,
you substitute it in the equation y-y1 = m(x-x1)
youll get y-2 = (5/8)(x-7)
then solve for y.

Answer 11

how owuld you solve fory if y isnt by the equal sign?

Answer 12

i mean just bring the -2 to right hand side, or you can just leave it there.
but it would be nicer if the equation be in form of y = mx +c

Answer 13

so y=mx-2

Answer 14

i mean from this equation y-2 = (5/8)(x-7)
ypull get y = (5/8)(x-7)+2