Question

giving medal

a line passes through the points (k+9, -4k-3) and (-2,1) and has a y intercept of 9. find the value of k and the equation of the line

Answer 1

Formula's and lesson: for helping you
http://www.waynesville.k12.mo.us/cms/lib07/MO01910216/Centricity/Domain/603/A1%20C4%20L4%20SOLUTION%20KEY%20WORKED%20OUT.pdf

Answer 2

that doesn't help me find k @ilikestudying140898

Answer 3

Well I can't give you the answer @samstergo

Answer 4

you figure it out

Answer 5

by learning the tips and techniques

Answer 6

"a line passes through the points (k+9, -4k-3) and (-2,1) and has a y intercept of 9. find the value of k and the equation of the line" There are several ways in which you could solve this problem. One would be to put the slope-intercept form of the equation of a straight line to use in finding the value of k:

y = mx + b

Calculate the slope, m, using the slope formula, given here:
\[m=\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\]

Answer 7

Your expression for m will include the unknown variable k.

You are told that your line passes through (-2,1) and that it has a y-intercept of 9.

Re-write this equation, substituting the unknowns:

y = m x + b

What do you get? Note that the given point, (-2,1), tells us that when x=-1, y=1.

Answer 8

Your job is to solve the resulting equation for the unknown variable, k.

Answer 9

Please show your work, so that I can give you meaningful feedback on it. Thanks.