Question

please help will medal



In order to receive credit, you must SHOW ALL YOUR WORK that is necessary to answer the question.

Question 1: If f(x) = x2 - x + 2, then find the value for f(-3).



Question 2: Evaluate 2xy - m when x = -4, y = 3, and m = 6



Question 3: Solve: -5 + x/3 = 20

Answer 1

@DanJS

Answer 2

hi

Answer 3

Which part do you not understand?

Answer 4

I'll get you started...

Question 1) f(x) = x^2 - x + 2 f(-3)=?

f(-3) = (-3)^2 - (-3) +2

f(-3) = 9 + 3 + 2

You just replace the variable with the numerical value, in each expression.

Answer 5

question 2 is
2(-4)(3)-6
question 3 is i'm stumped how to get you started

Answer 6

@AlexandervonHumboldt2

Answer 7

1. substitute -3 for x

Answer 8

9+3+2 for 1.

Answer 9

f(-x)=14

Answer 10

@abram134

Answer 11

don't get it

Answer 12

Did you still need help here?

Answer 13

Evaluate 2xy - m when x = -4, y = 3, and m = 6

Replace each variable with the numbers

2xy - m = 2*(-4)*(3) - 6 = -30

Answer 14

Solve: -5 + x/3 = 20

Multiply through by 3 first to clear fractions

-15 + x = 60

add 15 to both sides

x = 75

Answer 15

@danJS thanks