Question

I have two functions I cannot figure out.
1) f(-1)=2*-1^2 + -1
2)f(-1)=|-1+3|

help!!

Answer 1

pemdas

parenthesis
exponent
multiplication
division
addition
subtraction

Answer 2

1) f(-1) = 2* (1) + (-1) = 2 - 1 = 1
2) f(-1) = I2I = 2

Answer 3

absolute value signs act like parenthesis

Answer 4

Im not sure I understand? but ty very much

Answer 5

order of operations

you do everything in the parenthesis first

then exponents

then multiplication

etc etc etc

Answer 6

start by looking at your first problem

2*-1^2 + -1

no parenthesis, so we go to the exponent

-1^2= 1

2*1 + -1

now we go to the multiplication
2*1=2

2+ -1

then we add whats left

2+-1 =1

Answer 7

I understand the PEMDAS concept...so for f(3) =2 (3)^2+3 would would you get, I got 21

Answer 8

what would you get is what I meant to say. :)

Answer 9

i got 21

2*9+3
18+3
21