What are the two things you need in order to graph a linear equation?
Slope and the y-intercept
Graph the system of inequalities
y > x + 1
y > -x
Is the point a solution to the system?
No! The point lies on the DASHED line, so you cannot include it in the solution!
Is the point a solution to the system?
Yes! This point lies in the shaded region.
(Hint: The tick marks on the graph go up by 5's!)
Is the point a solution to the system?
Yes! This point lies on the SOLID line, so it IS a part of the solution!
(Hint: Each tick mark on the graph goes up by 2s!)
Graph the equation y = -3x + 2.
See teacher for answer.
Is (0,0) a solution to the system of inequalities below?
No! The point (0,0) lies outside of the shaded region.
What is the slope of the line y = 2/3 x + 1
2/3
Answer: Graph A
Answer: D
(Hint: Plug in "x" and "y" for each point to
see which ordered pair makes the inequalities true statements!)