The graph of f(x) = x2 βˆ’ 3x βˆ’ 28 is shown. Which of the following describes all solutions for f(x)?

a parabola passing through negative 4 comma zero, zero comma negative 28, and 7 comma zero

(βˆ’4, 0), (0, βˆ’28), (7, 0)
(βˆ’4, 0), (βˆ’1, βˆ’24), (0, βˆ’28), (3, βˆ’28), (7, 0)
(x, x2 βˆ’ 3x βˆ’ 28) for all real numbers
(x, y) for all real numbers

Respuesta :

Answer:

C. (x, x2 βˆ’ 3x βˆ’ 28) for all real numbers

Function graphs are graphs of solution equations for y! In this instance, f(x) = xΒ² -3x -28 is the graph.

Constructing a Function Graph:

β‡’f(x) = xΒ² βˆ’ 3x βˆ’ 28

  • A group of all points in the plane of the form (x, f(x)) constitutes the diagram of a function f.
  • The graph of f can also be defined as the graph of an equation y = f(x). As a corollary, a function's graph is a subset of an equation's graph.

Solving equation:

β‡’f(x) = xΒ² βˆ’ 3x βˆ’ 28

β‡’f(x) = xΒ² βˆ’ (7βˆ’4)x βˆ’ 28

β‡’f(x) = xΒ² βˆ’ 7x+4x βˆ’ 28

β‡’f(x) = x(x βˆ’7) +4(x βˆ’7)

β‡’f(x) = (x βˆ’7) (x+4)

Please find the attached file.

Find out more about the graph function here:

brainly.com/question/15165011

Ver imagen codiepienagoya