For the first, the initial value is found by finding y when x=0 When x=0 y=4 so the initial value is 4, making your answer B. 4
For the second one take any two points and do y2-y1/x2-x1 We'll use points 0,0 and 1,3 3-0= 3 1-0=1 So the equation is 3/1x and there's no y intercept So your answer is D. y=3x
The speed of the motor boat is 62mph So your answer is A.62 miles per hour
The fixed amount is the same as the y intercept, so when x is 0 Y is 8 So your answer is B.$8
