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anonymous
 one year ago
If h(x) = 4x − 8 and j(x) = −x, solve h[j(3)] and select the correct answer below.
−36
−20
1
4
anonymous
 one year ago
If h(x) = 4x − 8 and j(x) = −x, solve h[j(3)] and select the correct answer below. −36 −20 1 4

This Question is Closed

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2if j(x) = x, then what is j(3) equal to?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0umm idk.. is it j(3) ?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2replace 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?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so \(\Large h[{\color{red}{j(3)}}]\) 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
 one year ago
Best ResponseYou've already chosen the best response.2now evaluate h(3) by plugging x = 3 into the h(x) function

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yep now simplify the right hand side

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yikes.. idk how to just to the right hand side

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.24(3)8 is the same as 4*(3)8 in words it means "4 times 3, then subtract 8"

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you can use a calculator or work it out on paper here's a free calculator that's handy http://web2.0calc.com/

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yes, 4(3)8 = 20, so h(3) = 20

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2which means h[j(3)] = 20

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i always use mathway.com its awesome haha

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2that works too
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