Let x be a real number. find the lowest possible value of |5x^2 - 16| + |10x - 2|.
note: | | refers to absolute value.

See the attached picture:

15.8

Step-by-step explanation:

I posted my answer here: link

Considering that the lowest value for being 0 is not the correct approach and is not correct.  

I will not type it again, but for I have got , which is, at least, lower than 18.

Check my answer in the OP questions and any doubts just ask me.

it is true

step-by-step explanation:

all the combinations add up i used   calculator

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)