A boat moves at 20kmh^−1 along a straight path described by
y =11x/15+43/3
starting at x = −10; y = 7. Plot the angle (in degrees) of the line of sight from an observer at the coordinate origin to the boat as a function of time for 3 hours.
This is what I have so far
x=-10:20:50
y=((11*x)/15)+(43/3)
plot(x,y)
hold on
a=atand(y/x)
legend('boat')