Answer:
The range of d(t) is [-1, 7]
Step-by-step explanation:
The range of d(t) can be found with the lowest and the highest value of the function.
The highest value of d(t) occurs when the sine function is equal to 1 (because the value multiplying the sine is a positive value), and the lowest function occurs when it is equal to -1.
So we have that:
d_max = 4*1 + 3 = 7
d_min = 4*(-1) + 3 = -1
So the range of d(t) is [-1, 7].
