Questions on Algebra: Systems of Linear Equations answered by real tutors!

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Question 168423This question is from textbook
: x-y+4=0This question is from textbook
: x-y+4=0
Answer by jojo14344(1023) About Me  (Show Source):
You can put this solution on YOUR website!
x-y+4=0 --------------> A Line Equation
We follow Slope-Intercept form as we find the x & y intercepts: y=mx+b
It follows,
y=x+4 ----> Slope=m=1; Yintercept=b=4
f(y)=0:
x=-4, x- intercept
.
As we see below,
drawing(300,300,-5,5,-5,6,grid(1),graph(300,300,-5,5,-5,6,x+4),circle(-4,0,.15),circle(0,4,.15),red(circle(-3,1,.09)),red(circle(-2,2,.09)),red(circle(-1,3,.09)),red(circle(1,5,.09)))----> See x & y intercepts (-4,4). Also marked in "red" dots the slope ---> distance between points=1
.
Thank you,
Jojo