B) find intervals on which the function is concave up or concave down. 1. concave up on (−[infinity], −1) and on (0, [infinity]), concave down on (−1, 0) 2. concave down on (−[infinity], 3), concave up on (3, [infinity]) 3. concave down on (−[infinity], −1), concave up on (−1, 0) and on (2, [infinity]) 4. none of these 5. concave down on (−3, [infinity]) 6. concave up on (−[infinity], −1

there is no grid

step-by-step explanation:

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752

b. 2 and 4

step-by-step explanation:

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides