Part of the graph of the function f(x)=(x-1)(x+7) is shown below
Which statements about the function are true? Select three options
The vertex of the function is at (-4,-15)
The vertex of the function is at (-3,-16)
The graph is increasing on the intervals where x<-7 x>1
The graph is negative on the interval x<-4

its a straight line parallel to the time axis

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