Question

Which of the following ordered pairs should be tested to determine which side to shade when graphing the inequality y> 5x + 1 ?

 

A.) A point on the line y= 5x + 1

 

B.) Two points above the line y= 5x + 1

 

C.) A point on either side of the line y= 5x + 1

 

D.) Two points below the line y = 5x + 1

Answer 1

To know the which section to be shaded use a test point like (0, 0).

0 > (5)0 + 1 ----> 0 >5

The statement is false.

So, you shade the side of the line on which (0,0) doesn't lie.

To do this we pick two points arbitrarily as test points, one on each side of the line, NOT on the line.

So option C is correct.