Example of function evaluations, Algebra

Assignment Help:

Given  f ( x ) = x2 - 2 x + 8 and  g( x ) = √(x+ 6) evaluate f (3) and g(3)

Solution

Okay we've two function evaluations to do here and we've also obtained two functions so we're going to decide which function to employ for the evaluations. Here the key is to notice the letter that is in front of the parenthesis.  For f(3) we will use the function f( x ) and for

g (3) .we will employ g ( x ) .  In other terms, we just have to make sure that the variables match up.

Following are the evaluations for this part.

f(3) = (3)2  - 2 (3) +8 = 9 - 6 + 8 = 11

g(3) =√(3+6) =√9=3


Related Discussions:- Example of function evaluations

Need help with a word problem, a rectangular table is five times as long as...

a rectangular table is five times as long as it is wide. if the area is 45ft2, find the length and width of the table..

Pythagoras theorem, how do i find the length of the sides of a right triang...

how do i find the length of the sides of a right triangle

Solving linear equations by graphing, x+y=6 -x+y=-6 how do I write that in ...

x+y=6 -x+y=-6 how do I write that in order to graph it?

Algerbra.., ??2+??2+16??-18??+145=25 Standard form (x-h)^2 +(y-k)^2 k (x...

??2+??2+16??-18??+145=25 Standard form (x-h)^2 +(y-k)^2 k (x^2+16x+64)^2+(y^2-18y+81)^2=25 (x+8)^2+(y-9)^2=120 (h,k)=(8,-9) R=5 Intercepts

Example of function composition, Given f(x)= 2+3x-x 2 and g(x) =2x-1 evalu...

Given f(x)= 2+3x-x 2 and g(x) =2x-1 evaluate  ( fg ) ( x ) , (fog)(x) and (gof )(x) Solution These are the similar functions that we utilized in the first set of instances

Finding zeroes of a polynomial, Finding Zeroes of a polynomial The belo...

Finding Zeroes of a polynomial The below given fact will also be useful on occasion in determining the zeroes of a polynomial. Fact If P (x) is a polynomial & we know t

Use augmented matrices to solve the system, Utilizes augmented matrices to ...

Utilizes augmented matrices to solve out each of the following systems. x - y = 6 -2x + 2 y = 1 Solution Now, already we've worked this one out therefore we know that

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd