Calculate Slope (I)
(5, 7) and (3, 6)
What is 1/2?
(-2, -9), (0, -4)
5/2
If a line has a slope of 0, is it a horizontal line or a vertical line?
Horizontal
What does a slope of a line measure?
Steepness
(0, 2), (3, 2)
(6, 8) and (-3, 10)
- 2/9
(9, 2), (-8, 3)
-1/17
What is the symbol for slope?
m
What is the ratio to calculate slope?
Change-in-Y/Change-in-X OR rise/run OR y2 - y1/x2 - x1
If a line decreases from left to right, what kind of slope does it have?
negative
(4, 6) and (-2, -10)
8/3
(-5, 6), (-7, 18)
What do you call the vertical axis on the coordinate plane?
Y
If a line goes uphill from left to right, what type of slope does it have?
positive
true or false:
0/2 is undefined
false
(2,3) and (9,7)
What is 4/7?
(12, -11), (-3, -1)
-2/3
What do you call the horizontal axis on the coordinate plane?
x
If a line is perfectly vertical, what is its slope?
undefined
true or false
-8/0 is undefined
true
(7,10) and (7, -5)
undefined
if a line has an undefined slope is it a vertical or a horizontal line?
vertical
What is the point (0,0) called?
Origin
What is the slope of a horizontal line?
0
How do you read a graph?
From left to right