0 like 0 dislike
0 like 0 dislike
Without graphing, how do you figure out points to an equation that isn't a function ?

2 Answers

0 like 0 dislike
0 like 0 dislike
Are you asked if you can either prove or disprove it being a function, or are you only asked to show it’s not a function, because it’s definitely possible to express y as a function of x here.
0 like 0 dislike
0 like 0 dislike
The main thing with a function is that every x coordinate maps to exactly 1 y coordinate. For an equation to not have a function, it means that there are two (or more) different y values that share the same x value.

So find some value of x you can input which results in two or more possible solutions for y.
by

Related questions

0 like 0 dislike
0 like 0 dislike
19 answers
chorleyfc asked Jun 21
What do you do after an exam without instant results?
chorleyfc asked Jun 21
0 like 0 dislike
0 like 0 dislike
1 answer
sizpatel asked Jun 21
How do I know how many times a number is divisible by 2 till you reach an odd number?
sizpatel asked Jun 21
0 like 0 dislike
0 like 0 dislike
3 answers
BlaiseJames asked Jun 21
#53. In the second part after "So, let delta = epsilon" how do they go from |-(x+5)|<E to |-(x-5)-10|<E? In the first part is there a name for the rule/property used to f...
BlaiseJames asked Jun 21
0 like 0 dislike
0 like 0 dislike
2 answers
retsub12 asked Jun 21
How do I integrate t^z*ln(t) dt from x to y if z is an interger with the condition that 0<x<y
retsub12 asked Jun 21
0 like 0 dislike
0 like 0 dislike
1 answer
atasever_vildan asked Jun 21
If 0=28 and 32=37, what's 10? How do I calculate this? A rule of three seems to need an extra step.
atasever_vildan asked Jun 21

24.8k questions

103k answers

0 comments

33.7k users

OhhAskMe is a math solving hub where high school and university students ask and answer loads of math questions, discuss the latest in math, and share their knowledge. It’s 100% free!