Answer:
The equation will be "
".
Step-by-step explanation:
Given:
Points (12, 9) = (x, y)
⇒ 
then,

or,
⇒ 
then,

⇒ 

By using the point slope form.
The equation of tangent will be:
⇒ 



Sorry that is wrong, you distribute the 2 to the h and the 8 so it would be 2h-16-h. that would be h-16 on the left side,
For the last question
40*3=120 total cakes
120*.15=18 chocolate cakes
X=0
-3(0+2)2+4 distribute -3 to the parentheses-PEMDAS
(0-6)2+4 multiply 2 by the parentheses
(0-12)+4 solve the equation
= -8
It should be -
x = 53
y = 90
w = 53
z = 37