Yes，y＝2x＋7 is a function
because x is argument，and it has x and y，it is a primary function
12+3x=2x
12=-x
-12=x
the number is negitive 12
Answer:
f(x)=750-15t
Step-by-step explanation:
He starts off at 750 meters, and he decends 15 meters psr minute
Answer:
-7pi √3
Step-by-step explanation:
Treating pi as a variable, the simplified value can be written as;
-7pi √3
This can be obtained from using the following simple methodology;
pi(√3 -8 √3)
= pi (-7 √3)
Answer:
32
Step-by-step explanation:
f(x) = 3x²+5
f(-3) = 3(-3)^2+5 = 27 + 5 = 32
