Question

HELP!!! (Question below)

Answer 1

\[f(x) \left\{ x + 5 x < -2 \right\}\]

Then f(3)

We didn't have the f(3) in class, I have no idea what to do

Answer 2

Can anyone at all help? I've been working on math over four hours already

Answer 3

i think you are getting no responses because this doesn't really make sense

Answer 4

what is the meaning of \(x+5x<2\) ?

Answer 5

is it f(x)=x + 5x-2 ?

Answer 6

even that doesn't make much sense
maybe
\[f(x)=x^2+5x-2\]?

Answer 7

umm .. yeah may be that !

Answer 8

"Graph the Piecewise Function"

\[f(x) = \left\{ x + 5 x < -2 \right\}\]
\[\left\{ |x-2| x \ge-2 \right\} \]

Answer 9

ooh hold on i bet i know

Answer 10

\[f(x) =\left\{\begin{array}{rcc}
x+5& \text{if} & x <-2 \\
|x-2| & \text{if} & x \geq -2
\end{array}
\right.
\]

Answer 11

SWEET BABY JESUS YES. MY TEACHER HAS THE ANSWER KEY ONINE

Answer 12

ok well the answer is \(f(3)=|3-2|=|1|=1\)

Answer 13

https://classroom.peoriaud.k12.az.us/sites/mmalmos/Shared%20Documents/Adv%20Alg%20Honors/Ch%201-2/WS%202.2%20Piecewise%20Functions%20-%20ANSWER%20KEY.pdf

Answer 14

how does this work? you look at \(f(3)\) and ask the not too hard question, which catagory does 3 belong to? is \(3<-2\) or is \(3\geq -2\)
since it is clear that \(3\geq -2\) is true, you use the second expression to plug 3 in to

Answer 15

Hmm, does it look like the key is right?

Answer 16

probably
right but messy
for example
\[f(-4)\] here you would use the top expression because \(-4<-2\)

Answer 17

so
\[f(-4)=-4+5=1\]
once you know how to read these it is not that hard

Answer 18

SInce I really don't understand this, would you reccomend dropping Advanced Algebra Honors as a freshman and go back to Algebra 1?

Answer 19

no this is really just a matter of reading comprehension
it is not that bad once you understand how to read it

Answer 20

once again, what does this mean really?
\[f(x) =\left\{\begin{array}{rcc}
x+5& \text{if} & x <-2 \\
|x-2| & \text{if} & x \geq -2
\end{array}
\right.\]

Answer 21

I think I can read it, it's just knowing what to do with it....

Answer 22

I don't get what it means, she teaches 3 lessons a day, so I really don't remember

Answer 23

it mean IF your input is less than -2, use the top expression \(x+5\) i.e. add 5 to the number
and IF your input is greater than -2 use the bottom expression, i.e. subtract 2 and take the absolute value of the result

Answer 24

so for example what is \(f(5)\) ?
well since 5 is bigger than -2 we use the bottom formula, subtract 2 and take the absolute value and \(|5-2|=|3|=3\)

Answer 25

whereas \(f(-3)\) we would use the top expression because -3 is less than -2
so \(f(-3)=-3+5=2\)