Slope
How do you find the slope of two points?
y2-y1 over x2-x1
Two lines that have the same slope are considered _______ lines.
parallel
What is the y intercept of this line? y = 2x - 3
y-intercept = -3
What is the x-intercept of this graph? 5x-6y = 60?
x-intercept = 12
write an equation in slope intercept form that has the y intercept at -3 and has a slope of 1/4.
y=1/4x - 3
Two lines whose slopes are the opposite reciprocals are considered ______ lines.
perpendicular
Does this equation represent a direct variation? y=4x -2
No! Remember, it needs to be in the form y=mx to show direct variation
What is the y-intercept of this graph? -2x + 3y = 18
y-intercept = 6
write an equation in point slope form that goes through the points (10,11) and (20,22)
y-22=11/10(x-20) OR y-11=11/10(x-10)
what is the slope of a line perpendicular to the line described by the equation y=(13/3)x + 5
m=-(3/13)
What is the slope of the line: -6x-2y=9?
-3
what is the y-intercept of the graph y= -7
y-intercept = -7
what is the slope between the two points (2,-2) and (-5,10)
y = -2/3x +6
what is an equation in point slope form that goes through the point (6,6) and is parallel to the equation y=12x+700
y-6=12(x-6)
What ordered pair does the following line go through? y - 8 = 2( x + 3)?
(-3,8)
Write the equation of a line in Standard form that has a y-intercept of 4 and x-intercept of 10.
Hint ( ___x + ____ y = 20 )
2x + 5y = 20
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write an equation in slope intercept form for a line that goes through the point (2,3) that is perpendicular to the line y=-(1/4)x + 6
Write the equation of the line in slope-intercept AND point-slope that goes through (-2, 5) and (6, 10)
Slope Intercept: y = 15/4x + 25/4
Point Slope: y-10 = 5/8(x - 6) OR y - 5 = 5/8(x + 2)
Find the x and y intercept of this equation. y = 1/2x +3
x-intercept = -6
y-intercept = 3