Hello here is a solution :
No rational needs to be writing in decimal form not fraction
F = (1.8 x 15) +32
F = (27) + 32
F = 59
We should first find where the graph doesn't exist, which would be where the denominator is equal to 0 or the formula under the radical is negative. So we can write the equation x-3≤0 to find where the graph can't exist
x-3≤0
x≤3
So this means that no x values less than or equal to 3 can exist on this graph. So the only choice that isn't less than or equal to 3 is choice 2 (7)
Hope this helps
At around 20'000ft. and higher.
