If f(x)=4x+12 is graphed on a coordinate plane , what is the intercept of the graph? a.4b.8c.12d.16

The answer to the question is d

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

The answe may be c