Discover a world of knowledge and get your questions answered at IDNLearn.com. Get accurate and comprehensive answers from our network of experienced professionals.

What is an equation of the line that passes through the points (8,0) and (3,-5)?


Sagot :

Recall that the general equation for a line is y=mx+b where m is the slope and b is the y-intercept.
First, let's find the slope by finding
(y2-y1)/(x2-x1):
(-8-0)/(-5-3)
-8/-8
1

Now we know the equation is y=1x+b, or y=x+b.
By plugging in one of the two points we know is on the line, we can solve for b.
0=3+b
b=-3

So the equation is:
y=x-3
  • (8,0)
  • (3,-5)

Slope:-

[tex]\\ \rm\hookrightarrow m=\dfrac{-5}{3-8}=-5/-5=1[/tex]

Equation of line in point slope form

[tex]\\ \rm\hookrightarrow y-y_1=m(x-x_1)[/tex]

[tex]\\ \rm\hookrightarrow y=x-8[/tex]