Linear or Proportional?
Is y=mx proportional or linear?
Both
TRUE or FALSE: Proportional relationships MUST start at (0,0)
true
TRUE or FALSE: linear relationships can NOT start anywhere on a graph
False
TRUE or FALSE: Slopes can be curved
False
TRUE or FALSE: proportional equations are the same as linear equations
False
Is y=mx+b proportional or linear?
Linear
what is the equation for proportional relationships
y=mx
what is the equation for linear equations
y=mx+b
what is the formula for slope?
rise/run
7 toy whales cost 21$ what is the slope
3
What is the difference between proportional and linear relationship?
a proportional relationship goes through the origin (0,0)
What is the initial value for any proportional relationship?
0
in the equation y=mx+b what is b and what is mx
b is your y intercept and mx is your slope
how can I tell if a slope is negative or positive
(detailed explanation)
if the line is going upwards left to right it is positive.
if the is going downwards left to right it is negative.
Solve y=2x
y=8
X=4
Are all proportional relationships linear?
Yes
what does the m in y=mx mean
it means constant of proportionality, rate of change and the slope
is y=-5x+2 linear?
yes
7 toy whales cost 21$ what is the slope
3$ per whale
TRUE or FALSE: If 6 robots cost 24$ total, then 13 robots must cost 50$
False
Are all linear relationships proportional?
No
What are proportional relationships all about?
Constant rate of change
is y=5x+2 proportional?
No
If my line contains points (2,3) and (4,6) what is the slope?
3/2
what is your constant rate of change if you have the points (3,2) and (6,4)
2