213k views
3 votes
Explanation to please

Explanation to please-example-1

1 Answer

2 votes

Answer:

Red line is y<= -x +4, Blue line is y=> 3x -7 and the vertical line is x<2

Explanation:

The highlighted part of the graph is the combanation of all the inequalities ( the functions aka y=x)

these inequalities can be y<x y>x y>=x y<= x and even x> some number etc

the red line and blue line are solid so the must use the inequality symbol >= or <= which means greater or equal to or less than or equal to.

find the slope of each and to know whether its greater or less, look to see if the highlighted portion of the graph is above or below the line.

For red its below so y is less or equal to y<=(slope of line + y intercept)

and the opposite for blue line.

And if the line is vertical it must be and x function and then you use left or right. and its also dotted which means not touching at that point

since its to the left of the line its x is less than 2 so x<2

User Velmurugan
by
8.5k points