August 29, 2016
Graphing Equations Day 2
Obj: to review graphing equations
to find the slope of a line given two points
to write an equation of a line given two points
Graph the following equations using the method specified.
Slope intercept
1) y = 2x + 4
Cover-up
3) 3x - 5y = 15
Cover-up
2) 2x - y = - 4
Slope-intercept
4) 3x - 2y = 6
August 29, 2016
Quiz
Graph the following using the method
specified.
1) Slope
intercept
y = - 32 x + 4
2) Cover-up
4y - 3x = -12
August 29, 2016
Graphing Equations Day 2
Obj: to review graphing equations
to find the slope of a line given two points
to write an equation of a line given two points
Graph the following lines with the given infomation:
1)Through point (-2, 3) and with a slope of 1
2)
Through point (-4, -5) with a slope of -.5
August 29, 2016
Graphing Equations Day 2
Obj: to review graphing equations
to find the slope of a line given two points
to write an equation of a line given two points
Graph the following lines with the given information:
3) Through the point (-1, 5) with a slope of 0.
4)Through the point (2, -5) and a slope that is
undefined
August 29, 2016
Graphing Equations Day 2
Obj: to review graphing equations
to find the slope of a line given two points
to write an equation of a line given two points
Graph the following lines with the given information:
5) With a y-intercept of 5 and a slope of -2/3
6) With an x-intercept of -2 and a y-intercept of 7
Graphing Equations Day 2
Obj: to review graphing equations
to find the slope of a line given two points
to write an equation of a line given two points
August 29, 2016
Graph the following lines with the given information:
7) Passing through the points (-2, 4) and (-5, -9)
8) Through the points (1, 3) and (-1, -1)
Can you find the equation of the line we just graphed?
August 29, 2016
What is the slope of the line containing the points
(-3, 5) and (3, -1)?
Plot the points and count the rise and run.
(-3, 5)
(3, -1)
run
r
i
s
e
Formula for slope:
y2 --y1
m=
x2 -- x1
m=
(-3,
5)
-3 5
3 -1
(3,
-1)
August 29, 2016
Write an equation of a line with the given infomation.
1) slope: -1/2
y-intercept: 9
3)
m = 3.9
b = -5
2)
slope: 0
y-intercept: 2/3
4) slope: undefined
x-intercept: 1