THIS IS HARD BUT I NEED HELP ASAP MATH PROS ONLY Explain how you solve the following system
of linear equations by graphing substitution and elimination.

x+2y=63x-y=4

Also if you solve this I'll give you brainliest. Explain how to solve the following absolute value inequality and graph its solution. What if it was an equation? What would you do differently?

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17