Answer:
f is continuous at a = -5.
Explanation:
We have given a function.
f(x) = 5x+5
We have to check continuity of function at a = -5.
From definition of continuity,
If f is continuous at x = a

Putting x = a = -5 in given function ,we have
f(-5) = 5(-5)+5 = -25+5
f(-5) = -20


Hence,

f is continuous at a = -5.