Respuesta :

Answer:

The complete graph of [tex]f\left(x\right)=\left\{-2x:x\ge 3,\:y=-\frac{1}{3}x-5:x\le \:3\right\}[/tex] is shown below.

Step-by-step explanation:

Considering the function

[tex]f\left(x\right)=\left\{-2x:x\ge 3,\:y=-\frac{1}{3}x-5:x\le \:3\right\}[/tex]

The graph of the piece [tex]y=-2x\ \ \ \ \ \left\{x\ge3\right\}[/tex] indicates the blue line, starting at x=3. And with one unit increase in x, the value of y decreases by 2 units.

For example,

at x = 3

[tex]y = -2x[/tex]

[tex]= -2(3)[/tex]

 [tex]= 6[/tex]

and

at x = 4

[tex]y = -2x[/tex]

  [tex]= -2(4)[/tex]

  [tex]= 8[/tex]

By comparing the slope intercept form

[tex]y=mx+b[/tex]

Here,

The slope of which is m = -2,

and the piece [tex]y=-\frac{1}{3}x-5\ \ \ \ \ \left\{x\le3\right\}[/tex] indicates the yellow line.

By comparing the slope intercept form

[tex]y=mx+b[/tex]

Here,

  • The slope of which is m = -1/3, and
  • y - intercept = -5.

The complete graph of [tex]f\left(x\right)=\left\{-2x:x\ge 3,\:y=-\frac{1}{3}x-5:x\le \:3\right\}[/tex] is shown below.

Ver imagen SaniShahbaz
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