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 interval x > –3.
the graph is positive only on the intervals where x < –7 and where x > 1.
the graph is negative on the interval x < –4.

  about 5.6 days

step-by-step explanation:

we can fill the given information into the decay equation and solve for the value of t at which half the sample remains.

the half-life is about 5.6 days.

eww xbox also eww dayz

step-by-step explanation:

just for that im not answering

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a