hamoodalk8 hamoodalk8
  • 01-06-2021
  • Mathematics
contestada

-x if x si
Find f(7) for f(x) = 3 x + 5 if 15x<2
x? if x 22

Respuesta :

MrRoyal
MrRoyal MrRoyal
  • 06-06-2021

Answer:

[tex]f(7) = 49[/tex]

Step-by-step explanation:

Given

[tex]f(x) = \left[\begin{array}{cc}3x+5&1.5 <x < 2\\x^2&x>2\end{array}[/tex]

Required

Determine f(7)

To do this, we make use of

[tex]f(x) = x^2[/tex]

Because [tex]7 > 2[/tex]

So, we have:

[tex]f(x) = x^2[/tex]

This becomes:

[tex]f(7) = 7^2\\[/tex]

[tex]f(7) = 49[/tex]

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