4. Find the equation of the normal to the curve
at (1,16).

Find the equation of a the tangent and b the normal to the curve

at the point where x=-1.​

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

15.36 per mile

but forgot to round

i am pretty sure