Question 250758
g(x)=2/7-5x

If g(x) = 2/(7-5x) then g is defined for all real numbers except for values of x that cause the denominator (7-5x) to become zero (remember division by zero is undefined). 

So we need to solve 7-5x = 0 for x. 

7-5x = 0
5x = 7
x = 7/5

So the domain is all real numbers except 7/5.