Find the limit of the function by using direct substitution. limit as x approaches four of quantity x squared plus three x minus one
\(\lim_{x \to 4} f(x)=x^2+3x-1\)
just subsitute
f(4)=4²+3(4)-1
f(4)=16+12-1
f(4)=28-1
f(4)=27
it approaches 27 as x approaches 4
Answer:
The correct answer is 27, when using direct substitution
Step-by-step explanation:
(4)^2+3(4)-1 --> 16+12-1 --> 16+11= 27