SOLUTION: How would you do this kind of problem? Show step by step PLEASE! I get very confused with stuff like this... {{{y= 1/2x+5}}}

Algebra ->  Coordinate-system -> SOLUTION: How would you do this kind of problem? Show step by step PLEASE! I get very confused with stuff like this... {{{y= 1/2x+5}}}      Log On


   



Question 79999: How would you do this kind of problem? Show step by step PLEASE! I get very confused with stuff like this... y=+1%2F2x%2B5
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
How would you do this kind of problem? Show step by step PLEASE! I get very confused with stuff like this...
:
y = 1%2F%282x%29 + 5
:
Assume you want to find the value of x when y = 0 (x intercept)
:
1%2F%282x%29 + 5 = 0
:
Subtract 5 from both sides and you have:
1%2F%282x%29 = -5
:
Multiply both sides by 2x and you have:
1 = -5(2x)
:
1 = -10x
:
x = -1/10
:
:
Check in original equation: x = -.1
1%2F%282%2A-.1%29 + 5 =
1%2F%28-.2%29 + 5
-5 + 5 = 0
:
:
did this help?