Identify the VERTEX

Please help

1,-4

Step-by-step explanation:

The vertex is always that little spot there at the tip of a nonlinear function.

c. (3,2,6) is the answer.

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt