Answer:
Step-by-step explanation:
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f(x)=9x²+24x+1
f(x)=(3x)²+ 2×3x× 4 + 1
= (3x)²+2×3x×4 +16 -16 +1
=. ( 3x+4)² -15. -------(1)
then (3x+4)² ≥0
least value of (3x+4)² is 0
putting in equation 1
= 0-15 =-15
- 15 is the least value
Answer:
Substitute for x in equation (a) :
Substitute for y in equation (b) :
Answer:
all real numbers
Step-by-step explanation:
The domain are the values of the input values x that makes the given function exist
Given the function:
y= x^2+4x
Since x^2 is a perfect square, the value of x can exist on all real numbers
Hence the domain of the function is all real numbers
Answer:
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