P(x) = 3x4 + 2x3 − 4x2 + 21

31

Step-by-step explanation:

3 times 4=12

then 3 times 2=6 and add 12 plus 6 which is 18

4 times 2 is 8 so then you subtract 8 which is 10

then add 21 you get 31

o= 4(i) +3

step-by-step explanation:

o is your output value and i is your input value. so, for example, if we stuck 7 in as our input, we would first multiply by 4 ( pemdas ), which equals 28. then we would add 3 to 28, for a total output of 31. this may not be a graph, but, it is a way to solve your formula..

the answer is 11.2 (i know i’m late)