Answer:
3
Step-by-step explanation:
f(x) = x^2 +4x
f(-3) = (-3)^2 +4(-3)
=9-12
=-3
|f(-3) | = |-3|
The absolute value is the positive value
|f(-3) | = 3
Answer:
You basically need to reflect the coordinates that are given.
(Not sure if you're asking how to do it)
Step-by-step explanation:
For example:
(5,8) Reflect across the y-axis (-5,8)
(5,8) Reflect across the x-axis (5,-8)
160 = (10 + x) + x + 4x
160 = 6x + 10
150 = 6x
150/6 = x
x = 25
second number = x = 25
third number = 4x = 100
first number = x + 10 = 35
