abigailessson1205 abigailessson1205
  • 06-09-2020
  • Mathematics
contestada

only need help with part b!!
S5 higher maths(year 12/11th grade)

only need help with part b S5 higher mathsyear 1211th grade class=

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tramserran
tramserran tramserran
  • 06-09-2020

Answer:  D: x ≥ -2/3

Step-by-step explanation:

g(x) = 3x + 2         j(x) = [tex]\sqrt{x}[/tex]

b.  j(g(x))

    j(3x + 2) = [tex]\sqrt{3x+2}[/tex]

In order to be a Real number, the number under the radical must be greater than or equal to 0.

3x + 2 ≥ 0

     3x ≥ -2

      x ≥ -2/3

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