Slope-intercept form
Identify the slope and y-intercept of...
a) y = -6x
b) y = 1
c) y = 3 + 2x
a) slope = -6 y-int = 0
b) slope = 0 y-int = 1
c) slope = 2 y-int = 3
Write an equation in point-slope form given that the line passes through (1, -2) and has a slope of 1/5
y + 2 = 1/5 (x - 1)
What is the slope of a line that is parallel to y = 5x+2?
Slope = 5
Write in slope-intercept form.
Slope = 0 y-intercept = 15
y = 15
Write an equation in slope-intercept form:
slope = 10 y-intercept = -9
y = 10x - 9
Write an equation in point-slope form given that the line passes through (-3, 5) and m = 10
y - 5 = 10 (x + 3)
What is the slope of a line that is perpendicular to y = -5/2x - 12?
Slope = 2/5
Write in slope-intercept form.
2x + y = 10
y = -2x + 10
x| -2 | 0 | 2 | 4 |
y| 40 | 25 | 10 | -5 |
y = -15/2 x + 25
Write an equation in point-slope form given two points:
(1, -2) and (3, 2)
y + 2 = 2 (x - 1)
or
y - 2 = 2 (x - 3)
Write the point-slope form of the equation of the line passes through (2, 2) and is parallel to y = -4/7x + 1.
y - 2 = -4/7 (x - 2)
How tall is Ms. Nguyen?
5'3''
Write the equation in slope-intercept form given two points:
(6, 10) and (0, 3)
y = 7/6x + 3
Write an equation in point-slope form given two points:
(-1, -9) and (1, -3)
y + 9 = 3 (x + 1)
or
y + 3 = 3 (x - 1)
Write the point-slope form of the equation of a line that passes through (0, -1) and is perpendicular to y = 7x - 10.
y + 1 = -1/7 (x - 0)
Write in slope-intercept form.
6x + 2y = 8
y = -3x + 4
Use the table to write an equation in slope-intercept form:
x| -4 | -6 | -8 | -10 |y = 1/2x + 8
ERROR ANALYSIS: Write an equation in point-slope form that passes through the point (1, -5) and has a slope of 1/2.
y - 5 = -1/2 (x - 0)
Correct answer:
y + 5 = 1/2 (x - 1)
Write in point-slope form of the equation of the line that passes through (-7, -2) and is perpendicular y = x - 5.
y + 2 = -1 (x + 7)
Imagine the classroom is a giant graph with desks being points on the graph.
What is the slope from seat #40 to seat #10?
Slope = 5/2