1) What math symbol can be put between 5
and 9 to give a value greater than 5 but less
than 9?
2) How can you move one digit in this incorrect
equation to make it correct?
101 - 102 -- 1
y=kx
Questions:
How related to a line?
What would graph look like?
What is k?
What does it mean that k is a constant?
General
equation
reads
y = kx
‘y varies directly with x’
‘y is directly proportional to x’
y = kx2
‘y varies directly with the square of x’
‘y is directly proportional to x2’
y = kx3
‘y varies directly with the cube of x’
‘y is directly proportional to the cube of x’
‘y varies inversely with x’
‘y is inversely proportional to x’
‘y varies inversely with the square of x’
‘y is inversely proportional to the square of x’
‘y varies directly (or jointly) with x and z’
‘y is directly proportional to x and inversely
proportional to z’
‘y varies directly with x and inversely with z’