Which logarithmic graph can be used to approximate the value of y in the equation 3y = 7? Question Which logarithmic graph can be used to approximate the value of y in the equation 3y = 7? in progress 0 All 1 month 2022-04-07T13:26:25+00:00 2022-04-07T13:26:25+00:00 1 Answer 0
Answers ( 1 )
we have that
3^y = 7
applying log both members
log(3^y)=log 7
y*log 3=log 7
y=log 7/log 3
using thelogarithmic graph of y=log x
I graphically determine the values for x = 3 and x = 7
see the attached figure
for x=3
log 3=0.48
for x=7
log 7=0.85
therefore
y=log 7/log 3—–> y=0.85/0.48—–> y=1.77
the answer is
theapproximate value of y is 1.77