PRE CALC, PLEASE HELP

23

Step-by-step explanation:

You can simply substitute -2 into the x of the equation.

f(-2) = (-2)^4 + 2(-2)^2 -1

= 23

answer: what do you mean

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,