Now you're trying hard to make something hard out of something easy.
It gives you the equation . . . C = -7.11 t + 153.9
b). Take this equation, and calculate 'C' when 't' is -20.
Find 'C' : C = (-7.11)(-20) + 153.9
I'm sure you can do this easily.
c). Take this equation, and calculate what 't' would have to be
in order to have C=50 .
Find 't': 50 = (-7.11) t + 153.9
I'm sure you can do this easily too.
