jubayr

how do i prove the graph of a linear equation is a line? i know the slope between every point should be the same but idk how to prove it with letters. the equation is y=3/2x-9/2 but it should work with any equation i guess.

Find a and b if the graph ax+2y=b passes through (2,5) and is parallel to 3x-5y=7 i find a= -6/5 b= 38/5 is it correct? thanks

A line L has a slope of -2 and passes through the point (r,-3). a second line, K is perpendicular to L at (a,b) and passes through the point (6, r). find a in terms of r. I find the slope of K is 1/2 and i know (a, b) is the shared solution to both lines...

thanks. how do you underline the text? i dont understand why you talk about functions but i find say the coordinate are x1 y1, x2 y2 3/2=y1-y2 / x1-x2 = 3/2x1 - 3/2x2 / x1-x2 =3/2 it is a loop. how do i prove it pls?

it is the distributive property. what is confusing here

thank you i see it now

1tank=400mile 1tank/400miles * 1000mile=2.5tank

i think you meant USE the pythagoras theorem to calculate sides A^2 + B^2 = C^2 C is the longest side of a triangle (the one that doesnt meet right angle)