anonymous
  • anonymous
If h(x) = 4x − 8 and j(x) = −x, solve h[j(3)] and select the correct answer below. −36 −20 1 4
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
jim_thompson5910
  • jim_thompson5910
if j(x) = -x, then what is j(3) equal to?
anonymous
  • anonymous
umm idk.. is it j(-3) ?
jim_thompson5910
  • jim_thompson5910
replace every x in the j(x) function with 3 you're on the right track, but it should be j(3) = -3 do you see how I got that?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
ooh okay yea i see
jim_thompson5910
  • jim_thompson5910
so \(\Large h[{\color{red}{j(3)}}]\) turns into \(\Large h[{\color{red}{-3}}]\) this is possible because j(3) = -3. We can replace all of `j(3)` with `-3`
jim_thompson5910
  • jim_thompson5910
now evaluate h(-3) by plugging x = -3 into the h(x) function
anonymous
  • anonymous
h(-3)= 4(-3)-8 ??
jim_thompson5910
  • jim_thompson5910
yep now simplify the right hand side
anonymous
  • anonymous
yikes.. idk how to just to the right hand side
jim_thompson5910
  • jim_thompson5910
4(-3)-8 is the same as 4*(-3)-8 in words it means "4 times -3, then subtract 8"
anonymous
  • anonymous
-20
jim_thompson5910
  • jim_thompson5910
you can use a calculator or work it out on paper here's a free calculator that's handy http://web2.0calc.com/
jim_thompson5910
  • jim_thompson5910
yes, 4(-3)-8 = -20, so h(-3) = -20
jim_thompson5910
  • jim_thompson5910
which means h[j(3)] = -20
anonymous
  • anonymous
i always use mathway.com its awesome haha
jim_thompson5910
  • jim_thompson5910
that works too

Looking for something else?

Not the answer you are looking for? Search for more explanations.