y = kx?
Substitute the x and y value, then take the log of both sides.
log y = k*?*log x
can you show me how to do this with the points
Two points determine a line. Given two points (Q,W) and (E,R), you can find the equation of the unique line, y = m x + b that goes through those two points.
Three points determine a parabola, y = a x^2 + b x + c
Four points determine a cubic, y = a x^3 + b x^2 + c x + d
given (Q,W) and (E,R)
slope = m = (R-W)/(E-Q)
so now you have m
go back and put first point in to get b from b = y - m x = W - m Q
m = (80-5) / (6-2)
m = 75/4
b = 5 - (75/4)2
b = 5 - 75/2
b = (10-75)/2
b = -65/2
y = (75/4)x -65/2
4 y = 75 x - 130
I did not understand that your question related only to direct variation until I saw Dr. Bob's answer.
Algebra - I am getting ready to start an Algebra class for the first time and I ...
SHAY - THE MATH QUESTION IS IT ALGEBRA , PRE ALGEBRA' OR GEOMETRY? Quadriatic ...
Algebra 1A - How is algebra a useful tool? what concepts investigated in algebra...
Algebra - In an interview of 50 math majors, 12 liked calculus and geometry 18 ...
7th grade - There are at least 5 more than twice as many students taking algebra...
algebra 1 - at a certain high school,350 students are taking algebra. the ratio ...
Algebra-still need some help - Homework Help Forum: Algebra Posted by Jena on ...
math - 8. In an interview of 50 math majors, 12 liked calculus and geometry 18 ...
Algebra - The average mark on a test in an algebra class is 80. If the two ...
pre-algebra - kk my teach told me to describe and draw things that are about pre...