Question 727022
{{{ t }}} is plotted on the horizontal axis
{{ P }}} is plotted on the vertical axis
You are given 2 points
( 0, 92000 ) and ( 7, 127000 )
Use the point-slope formula
{{{ ( P - 92000 ) / ( t - 0 ) = ( 127000 - 92000 ) / ( 7 - 0 ) }}}
{{{ ( P - 92000 ) / t = 35000 / 7 }}}
{{{ P - 92000 = 5000t }}}
{{{ P = 5000t + 92000 }}}
(A) is the answer
check:
Let {{{ t = 7 }}}
{{{ P = 5000*7 + 92000 }}}
{{{ P = 35000 + 92000 }}}
{{{ P = 127000 }}}
OK