if f(x)=2x^2-1 and g(x)=2f(x)+3 evaluate for g(-4)

if f(x)=2x^2-1 and g(x)=2f(x)+3 evaluate for g(-4)
in Calculus Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

f(-4)=2×16-1=31; g(-4)=2f(-4)+3=2×31+3=65.

Another way: g(x)=2(2x²-1)+3=4x²-2+3=4x²+1.

g(-4)=4×16+1=65.

by Top Rated User (1.1m points)

Related questions

1 answer
Let f(x) = -x^4-x-1, evaluate f(-1) and -2f(1).
asked May 26, 2021 in Calculus Answers by trueguildm Level 1 User (120 points) | 373 views
1 answer
Let f(x) = -x^4-x-1, evaluate f(-1) and -2f(1).
asked Mar 21, 2020 in Calculus Answers by qwertykl Level 2 User (1.4k points) | 2.5k views
1 answer
Let f(x) = -x^4-x-1, evaluate f(-1) and -2f(1)
asked Aug 29, 2019 in Calculus Answers by anonymous | 2.2k views
1 answer
Let f(x) = -x^4-x-1, evaluate f(-1) and -2f(1).
asked Aug 8, 2017 in Calculus Answers by anonymous | 1.6k views
2 answers
Evaluate (2f)(5) for f(x) = x 2 + 1
asked May 30, 2013 in Algebra 2 Answers by anonymous | 1.4k views
1 answer
if 2f(x)-f(1/x)=5x,then find the value of f(2)?
asked Nov 26, 2013 in Calculus Answers by asish george | 737 views
1 answer
if f'(x) = 2f(x) and f(2) = 1 then what does f(x) equal
asked Jan 24, 2012 in Calculus Answers by anonymous | 5.2k views
1 answer
f(x)=2x^2, and 2f(3a)=144 what could be the value of a
asked Jan 1, 2016 in Algebra 1 Answers by adrianna | 1.9k views
1 answer
If f(x) + 2f(2002/x) = 3x, find the value of f(2).
asked Aug 19, 2012 in Algebra 2 Answers by anonymous | 1.4k views
1 answer
Given f(x) = 2x + 3 and g(x) = x2. Evaluate the following
asked Apr 8, 2020 in Calculus Answers by qwertykl Level 2 User (1.4k points) | 979 views
1 answer
For f(x)=|9-x| and g(x)=sqrt(x-1) evaluate fog(1)
asked Mar 1, 2017 in Calculus Answers by lovelymath Level 2 User (1.9k points) | 2.9k views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. complete the following. 825 use each digit once .make the two smallest 3 digit numbers and two largest 3-digit number (2)
  4. Solve 15 -1(12÷4+1)? (4)
  5. 8:4(5+2) (3)

Most popular tags

87,545 questions
99,733 answers
2,417 comments
486,335 users