Which is the graph of f(x) = –(x + 3)(x + 1)?

The graph of the function is attached below. Graph (b) is correct.

Further explanation:

Given:

The function is

Explanation:

The given function is .

The graph of the function represents downward parabola as the function has negative sign.

Solve the function to obtain the zeroes.

The zeroes of the function are and .

In graph 2 the zeros are and .

The graph of the function is attached below. Graph (b) is correct.

Graph (a) doesn’t represent the graph of the function.

Graph (b) represents the graph of the function.

Graph (c) doesn’t represent the graph of the function.

Graph (d) doesn’t represent the graph of the function.

Learn more:

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Polynomials

Keywords: quadratic equation, equation factorization. Factorized form, polynomial, quadratic formula, zeroes, Fundamental Theorem of algebra, polynomial.

we have

we know that

The function is a quadratic equation open downward

The vertex is a maximum

The zero's of the function are the points and

therefore

the answer in the attached figure

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

part a: 1.08

part b: 27.59