f *( x ) = 2 sqrt ( x - 5 ) + 4

estimate for what x value fives you f(x)=14

Hello from MrBillDoesMath!

x = 30

Discussion:

Note: I ignored the * in f*(x)  as i don't know what it means. (If this is not what you intended, please indicate what * means)

f(x) = 2 sqrt(x-5) + 4          

f(x) = 14

=>

14 = 2 sqrt(x-5) + 4             => subtract 4 from both sides

14 -4 = 2 sqrt(x-5)               => divide both sides by 2

10/2 = sqrt(x-5)                   =>

5 = sqrt(x-5)                        => square both sides

5*5 = x-5                              => add 5 to both sides

5*5 + 5  = x

25 + 5 = x

x = 30

Thank you,

MrB

right

step-by-step explanation:

the first one, all those points on the line just make a strait line.