Graphing
Vocabulary
Plotting ln Points
Identifying Soultions
100
-5x + 3y = -9
Slope:
Y-int:
Slope: 5/3
Y-int: -3
100
What does a negative slope look like?
100
Plot the x-intercept and y-intercept of y=x+1 (blue). What are they?
x-intercept: (-1,0)
y-intercept: (0,1)
100
How many solutions exist in this system of equations?
y=3x+2
y=3x-1
No Solution (parallel)
200
y= -2x+6
y= x-1
What is the solution?
(3,2)
200
What is x and y?
rise over run
200
What is the x and y-intercept of the linear equation y=-3/4x+3?
x-intercept: (4,0)
y-intercept: (0,3)
200
How many solutions exist in the system of equations?
y=2x+3
-4x+2y=6
Infinitely many solutions (same line)
300
HOW do you write the equation for this graph?
1. Identify slope (can use two points from graph)
2. Find y-int (substitute then solve for b)
300
What is a coordinate plane? Where is the origin located on the plane?
300
Plot the ordered pairs on your graph. What are the equations to this system?
Line 1: (-1,4), (0,5), (1,6), (2,7)
Line 2: (-1,4), (0,1), (1,-2), (2,-5)
Line 1: y=x+5
Line 2: y=-3x+1
300
How many solutions exist in this system of equations?
y-0.5x=7
2y=x-3
No Solution (parallel)