SOLUTION: Find the y-intercept and the x-intercept for the equation
-8x + y = 28
-8(0) + y= 28
Y=28
Y intercept is (0,28)
-8x + 0 =28
-8x = 28
X intercept is (-2/7,0) or (-4/14,0)??
Algebra.Com
Question 199792This question is from textbook
: Find the y-intercept and the x-intercept for the equation
-8x + y = 28
-8(0) + y= 28
Y=28
Y intercept is (0,28)
-8x + 0 =28
-8x = 28
X intercept is (-2/7,0) or (-4/14,0)????
Can you help me which answer is right and why?
Thank you!
This question is from textbook
Found 2 solutions by solver91311, jim_thompson5910:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
They are both right in the sense that both
and
(or even
for that matter) describe the exact same point in
. However, the one with the coordinates reduced to the lowest terms is generally preferable.
John

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
x-intercept
To find the x-intercept, plug in and solve for x
Start with the given equation.
Plug in .
Simplify.
Divide both sides by to isolate .
Reduce.
So the x-intercept is
.
------------------------------------------
y-intercept
To find the y-intercept, plug in and solve for y
Start with the given equation.
Plug in .
Multiply and 0 to get 0.
Simplify.
So the y-intercept is
.
If you have any questions, email me at jim_thompson5910@hotmail.com.
Check out my website if you are interested in tutoring.
RELATED QUESTIONS
Find the vertex and y-intercept of the parabola with the following equation
y^2 + 8x -... (answered by lynnlo)
Find the slope and y-intercept for each line.
28.... (answered by vleith)
Find the slope and Y intercept for... (answered by benni1013)
Find the x-intercept and y-intercept of the equation.
28.... (answered by checkley75)
find the y-intercept for 7x+2y=28
(answered by stanbon)
find the slope and y-intercept of... (answered by rachelsittler,rfer)
I am working on equation of a line in slope-intercept form. One example I don't get is... (answered by MathLover1)
find the slope,m,and the y intercept,b,of the line equation... (answered by venugopalramana)
If the y-intercept of line 2kx+(k-4)y=-28 is 7, find the x-intercept (answered by josgarithmetic)