Question

Find the equation of the parallel line to each of the following that passes through the point indicated. y = 0.75x – 2 passing through the point (-2.5, 1.25 )

Answer 1

y=0.75x+b since (-2.5,1.25) is on the line, 1.25=0.75*-1.25+b, solve for b now

Answer 2

how would u solve for B?

Answer 3

Fine, I'll do it for you: 0.75*(-2.5)=-1.875, so b=1.25-1.875, which is -0.625

Answer 4

thanks

Answer 5

okay i have another one: Find the equation of the parallel line to each of the following that passes through the point indicated.

y = -4x - 3 passing through the point (2, -7)

Answer 6

why? that's elementary algebra, you can't do it?

Answer 7

no its alg 2

Answer 8

Probably Chinese students study algebra earlier

Answer 9

yeah

Answer 10

can u solve the other one?

Answer 11

I'll tell you that the value for the gradient is -4, you can find the value for b as I did b4

Answer 12

ok

Answer 13

if you see a parallel problem, immediately think that the gradients of the two lines are the same. If it's a perpendicular problem then the product of the two gradients is -1

Answer 14

ok

Answer 15

is it y=-4x-31

Answer 16

oh no it is y=-4x-1

Answer 17

i mean y=-4x+1