Answer:

Step-by-step explanation:
Let the quadratic function be

The given points must satisfy this function;
Substitute
.

Substitute (0,-2)

Substitute (1,-4);

Put equation (2) into equation (1)



Put equation (2) into equation (3)


Add equation (4) and (5)

Divide both sides by 3

Put a=3 in equation 5.



The quadratic function is;

Answer:
C Infinitely Many Solutions
Step-by-step explanation:
i put the 2 equations into Desmos Graphing Calculator and they are the same line so it has infinitely many solutions.
Answer: y=kx/w^2
Step-by-step explanation:
y is directly proportional to x
y∝x
y=kx
y inversely proportional to the square of w.
y ∝ (1/(w)^2)
y=k/w^2
y=kx/w^2
Answer:
$200
Step-by-step explanation:
First, find the unit rate:
12/3= 4
Then multiply:
4*50= 200
Hope this helps!