Question

When will the dependent variable in the equation(pic) equal or exceed 4?

x ≥ –0.17
x ≥ 45
x ≥ 48
x ≥ 53

Answer 1

\[\sqrt{x+4}-3\ge4\]
solve this

Answer 2

not sure how, to do it

Answer 3

passing -3 to the right and squaring bouth sides:
x+4 >= 49
x>=45

Answer 4

got it?

Answer 5

other way to see it: the rooth value have to be equal 7