Day 4: Quiz 4: Anwers

Quiz 4: Answers

Which inequality does this graph represent? 

Question 1: The answer is a.) y < x + 4 

because < means less than and on the graph the bottom part of the graph is shaded. The bottom of the graph is the lesser part of the graph, therefore thats the correct graph for it because the plots are also on the right points. The line is a solid like which means it cant be equal to its just less than.

Question 2: The answer is b.) y < -2 x -3 

because < means less than and on the graph the bottom part of it is shaded and the y intercept is -3. The line goes through that intercept and through -2x , there for it is the right line. The line is only less than because it is a solid line.

Question 3: The answer is c.) y <  -2x + 1

because < means less than or equal to. The line is dotted on the graph and if it is equal to or less than, then the line has to be dotted. The plots are on -2x and positive one. The bottom of the line is shaded in which means less to and thats what this < means!