If #h( t ) = 4t - 5,# and #g ( t ) = 2t -4 #, what is #( h - g ) ( 3)#?

1 Answer
Jim G.
Sep 15, 2017

#(h-g)(3)=5#

Explanation:

#(h-g)(t)=h(t)-g(t)#

#color(white)((h-g)(t))=4t-5-(2t-4)#

#color(white)((h-g)(t))=4t-5-2t+4#

#color(white)((h-g)(t))=2t-1#

#"to evaluate "(h-g)(3)" substitute "t=3#

#(h-g)(t)=2t-1#

#rArr(h-g)(color(red)(3))=(2xxcolor(red)(3))-1=6-1=5#

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