36 terms

Algebra Flashcards

This is a set of flashcards to help with algebra in your math class! Enjoy :)
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Terms in this set (...)

(2,1) (0,1)
0
(3,2) (3,9)
Undefined
(4,2) (5,3)
1
Slope
The steepness of a line
Y-Intercept
Where a line crosses the y-axis
Positive Slope
A line that goes up to the right
Negative Slope
A line that goes up to the left
Zero Slope
A horizontal line
No Slope/Undefined
A vertical line
Slope-Intercept Form
y=mx+b
Slope (in words)
Rise over Run
Slope (from a table)
Change in y over change in x
m=(what does m stand for)
Slope
b=(what does b stand for)
y-Intercept
What is the y-intercept
Where the line crosses the y axis
y=3x+2 What is the slope
3
y=-2x-8 What is the slope
-2
y=6x+5 What is the y-intercept
5
y=2x-9 What is the y-intercept
-9
On a table how do you find b?
When x is zero
Is a point a solution of a line?
If the line goes through that point when graphed
y=3x+7
slope=3 y-intercept=7
y-2=2(x-3)
slope=2 y-intercept=2
y=1/2x-1
slope=1/2 y-intercept=-6
3x-4y=24
slope=-3/4 y-intercept=-6
y-1=-5(x+2)
slope=-5 y-intercept=1
y=3x-1
slope= 3 y-intercept=-1
-x+3y=9
slope= 1/3x y-intercept=3
5x-20y=60
slope= 1/4y-intercept=15
y+3=-2(x-1)
slope= -2y-intercept=-3
y=-4x+2
slope=-4 y-intercept=2
Rate of change
ratio of the change in the y-coordinates(rise) to the change in the x-coordinates(run)as you move in the positive directionratio that describes, on average, how much one quanitity changes with respect to a change in another quantity
Rate of change definition
change in y/change in x
slope of a line
the change in the y-coordinates(rise) to the change in the x-coordinates(run)as you move in the positive
the slope of a line that passes through (-1,2) and (3,4) is positive,negative or undefined
Positive slope
the slope of a libe that passes throught the points(-1,-2) and (-4,1) is it positive, negative or undefined
Negative slope