Question 1154557
Height y  depends on time x.


Slope  {{{-0.5}}}, and point  (18,15);
Equation in point-slope form is  {{{y-15=-0.5(x-18)}}},

{{{y=-0.5x+9+15}}}

{{{highlight_green(y=-0.5x+24)}}}



The question asks for y if x is 15.