Ask your own question, for FREE!
Mathematics
eviant:

PLS HELP!!! Which of the following is true for the relation f(x) = x2 + 8? Only the inverse is a function. Neither the equation nor its inverse is a function. Both the equation and its inverse are functions. Only the equation is a function.

5 months ago
eviant:

@Vocaloid

5 months ago
Vocaloid:

is the 2 supposed to be an exponent? anyways, just sketch the graph and see if it passes the horizontal and vertical line tests

5 months ago
eviant:

yes the 2 is an exponent what are the horizontal and vertical line tests?

5 months ago
Vocaloid:

graph the function 1. vertical line test: if you can draw a vertical line anywhere so that it crosses the function more than once, the original relation is not a function 2. horizontal line test: if you can draw a horizontal line anywhere so that it crosses the function more than once, the inverse is not a function

5 months ago
eviant:

5 months ago
Vocaloid:

well it's x^2 + 8 not just x^2 but it doesn't really matter in this case so taking a look at your function, can you draw any sort of vertical line that would cross the function more than once?

5 months ago
eviant:

@kittybasil thanks

5 months ago
eviant:

@Vocaloid I don't think so, not a straight line

5 months ago
kittybasil:

❓❔

5 months ago
Vocaloid:

good so the original relation is a function what about a horizontal line?

5 months ago
eviant:

we can draw a horizontal line though, right?

5 months ago
Vocaloid:

yes so the inverse is not a function therefore "Only the equation is a function." ---> your sol'n

5 months ago
kittybasil:

Here's your function, sorry about that

1 attachment
5 months ago
Can't find your answer? Make a FREE account and ask your own question, OR you can help others and earn volunteer hours!
Latest Questions
iamjustmea: "My love is like a red, red rose" is a simile.
58 minutes ago 13 Replies 2 Medals
iamjustmea: The most common foot in English poetry is the _
1 hour ago 0 Replies 0 Medals
lindey: Given the system mc022-1.jpg, which is true?
29 minutes ago 1 Reply 0 Medals