If F(t) = 4t + 7, find

romsek Math Team Sep 2015 2,961 1,674 USA Mar 5, 2020 #2 What's the trouble? Plug t=(3+h) into F(t), and then plug t=3 into it and subtract one from the other, then divide by h.

What's the trouble? Plug t=(3+h) into F(t), and then plug t=3 into it and subtract one from the other, then divide by h.

A alxn Oct 2018 4 0 Earth Mar 5, 2020 #3 Do you mean to do like so (3+h) = 4t + 7 h = 4t + 4 (F(3 + 4t + 4) - F(3))/h

mrtwhs Feb 2010 738 162 Mar 5, 2020 #4 I think what he means is $F(\mbox{$\,\,\,\,\,\,$})=4(\mbox{$\,\,\,\,\,\,$})+7$ and you fill the parentheses with whatever you want.

I think what he means is $F(\mbox{$\,\,\,\,\,\,$})=4(\mbox{$\,\,\,\,\,\,$})+7$ and you fill the parentheses with whatever you want.

A alxn Oct 2018 4 0 Earth Mar 5, 2020 #5 (4(3 + h) + 7 - (4(3) + 7)) / h (12 + 4h + 7 - 12 + 7) / h 4h / h 4

topsquark Math Team May 2013 2,530 1,050 The Astral plane Mar 6, 2020 #6 (4(3 + h) + 7 - (4(3) + 7)) / h (12 + 4h + 7 - 12 \(\displaystyle \color{red} -\) 7) / h Your forgot to include the negative on the second 7. As it happens it doesn't change your final answer, which is correct. -Dan

(4(3 + h) + 7 - (4(3) + 7)) / h (12 + 4h + 7 - 12 \(\displaystyle \color{red} -\) 7) / h Your forgot to include the negative on the second 7. As it happens it doesn't change your final answer, which is correct. -Dan