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Mathematics 8 Online
OpenStudy (anonymous):

So no one gonna help me? K. 😏

OpenStudy (sheraz12345):

Question plz?

OpenStudy (mathmale):

The most effective way in which you can get help is to post an actual question up front. No "So no one gonna help me?" (please). Welcome to OpenStudy!

OpenStudy (yanasidlinskiy):

\(\Huge\bf \color{yellow}{Welcome~to~OpenStudy!!}\hspace{-310pt}\color{cyan}{Welcome~to~OpenStudy!!}\hspace{-307.1pt}\color{midnightblue}{Welcome~to~\color{purple}{Open}}\color{blue}{Study!!!!}\)

OpenStudy (yanasidlinskiy):

Just like mathmale said:D

OpenStudy (anonymous):

I would save that if I knew how

OpenStudy (yanasidlinskiy):

Save what?

OpenStudy (anonymous):

^ I asked and no one helped me.

OpenStudy (anonymous):

ask the question again

OpenStudy (anonymous):

Ok it's is the relation {(1,3),(-4,0),(3,1),(0,4),(2,3)} a function? Why or why not?

OpenStudy (mathmale):

Again, please post your question right away, for faster responses. {(1,3),(-4,0),(3,1),(0,4),(2,3)} is a relation in that for each of the given x-values: {1,-4,3,0, 2} there is an associated y-value: {3, 0,1,4, 3). Rule: a relation is a function if, for each of the given x-values, there is exactly ONE y-value associated, NO more. So: Please go through the given points, one by one: {(1,3),(-4,0),(3,1),(0,4),(2,3)} The first x-value is 1, for which y=3. Do you see any other points for which the x-coordinate is 1? (a) if NO, then the probability that this is a function increases. (b) if YES (that is, the x-value 1 has more than one y-value associated with it), the relationship is NOT a function. Move on to the second x-value, -4, and repeat this questioning processes. Is {(1,3),(-4,0),(3,1),(0,4),(2,3)} a function or not? Why?

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