How do you find the general form of the line passing through the point (3, -1) with slope (5/2)?

↳Redirected from "Which following pairs of atoms, have a lower electron affinity? a) Ca,K b) I,F c) Li, Ra. I seriously don't know anything about electron affinity all ik that it can buy another element"
1 Answer
Patrick H.
Aug 17, 2016

Substitute the variables in the slope-intercept equation for our numbers.

Explanation:

This is the slope-intercept equation:

#y=mx+b#

The letter #m# is the slope (5/2) and the letters #y# and #x# are our x- and y-variables (3 and -1, respectively).

Our equation is this:

#3=5/2(-1)+b#

From here, we solve for b:

#3=-5/2+b#

#3=6/2#

#6/2=-5/2+b#

#11/2=b#

We now know that #b=11/2#, so we can plug it back into our equation to get our answer. Since this is an equation with an infinite number of coordinates on it, the only numbers we're going to put in are the slope and b. This is what we get:

#y=5/2x+11/2#

Related questions
See all questions in Write an Equation Given the Slope and a Point
Impact of this question
3122 views around the world
You can reuse this answer
Creative Commons License