Given: f(x)= x+2 and h(x)= 1/x-1

find 2f(x)-h(x)

All you have to do here is replace f(x) with x + 2 and h(x) with 1/x-1.

It's like plugging in a number for x, but instead you are plugging in a whole function instead of just a number. Whenever you are pluging something in, whatever it is, make sure it is in parentheses: ( ) always!

Until your understanding of algebra becomes stronger.

2f(x)-hx

First lets plug in x + 2 for f(x). It's gonna look like this:

2(x + 2) - h(x)

Notice how I put x + 2 in parentheses next to the 2, you

a l w a y s want to do this. Now we just do the same for h(x):

2(x + 2) - (1/x - 1)

And that's it. That's all you have to do.

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a