The strength of a radio signal SSS, measured in microvolts, is modelled by the function
S(t)=32∣2t−10∣+4,t⩾0 S(t) = \frac{3}{2}|2t - 10| + 4, \quad t \geqslant 0 S(t)=23∣2t−10∣+4,t⩾0where t t\,t is the time in seconds after a broadcast begins. The minimum signal strength occurs at point VVV.
Determine the coordinates of VVV.
Solve the equation S(t)=t+7S(t) = t + 7S(t)=t+7.
An interference signal is modelled by the equation
S(t)=mt+1 S(t) = mt + 1 S(t)=mt+1where m m\,m is a constant. Given that the broadcast signal and the interference signal have equal strength at exactly two distinct times,
find the range of possible values for mmm.
