Applications of Linear Eqns: x, length of person’s arm in inches and y, height of
Hello my friends,
I had to leave this problem blank on my quiz but I have been able to work some of it out on my own (I think.) The part that I am stuck on is how to find b or the y intercept with the information that I have:
The pairs of information (x,y) represent x, the length of a person’s arm in inches and y, the height of the same person in inches. Given (17,58) and (24,82), (a) find a linear equation through the two points. (b) Use the equation to estimate the height of a person whose arm is 21 inches.
I used y2-y1/x2-x1 =
(58-82)/(24-58) = -24/-34 = 12/17
so that gives me y=12/17x+ ??? <--- that is where I am stuck. How do I find b or the y intercept with this information?
Any help is REALLY appreciated, thank you.
Hello my friends,
I had to leave this problem blank on my quiz but I have been able to work some of it out on my own (I think.) The part that I am stuck on is how to find b or the y intercept with the information that I have:
The pairs of information (x,y) represent x, the length of a person’s arm in inches and y, the height of the same person in inches. Given (17,58) and (24,82), (a) find a linear equation through the two points. (b) Use the equation to estimate the height of a person whose arm is 21 inches.
I used y2-y1/x2-x1 =
(58-82)/(24-58) = -24/-34 = 12/17
so that gives me y=12/17x+ ??? <--- that is where I am stuck. How do I find b or the y intercept with this information?
Any help is REALLY appreciated, thank you.