Thursday

April 24, 2014

April 24, 2014

Posted by **Lucas** on Wednesday, March 23, 2011 at 8:52pm.

y= x - +4

x: +4,0,-4.-6

y: ?,?,?,?

- math -
**jai**, Wednesday, March 23, 2011 at 9:01pmy = x - 4

to get y, just plug in each given value of x,,

if x = 4,

y = 4 - 4 = 0

if x = 0,

y = 0 - 4 = -4

if x = -4,

y = -4 - 4 = -8

if x = -6,

y = -6 - 4 = -10

hope this helps~ :)

- math -
**Lucas**, Wednesday, March 23, 2011 at 9:11pmDescribe the relationship between x and y.

x: +5,+2,0,-3

y: 3,0,-2,-5

- math -
**jai**, Wednesday, March 23, 2011 at 9:23pmby observation, we see that a given value of x is 2 greater than its corresponding value of y,,

since it's fixed (or the difference between the values is constant), we say that the relationship between them is linear.

getting the equation, we first find the slope of the line, represented by m:

m = (y2-y1)/(x2-x1)

where x1 and y1 are the x- and y-coordinate of a point on the line, and x2 and y2 is another, different point on the line

say we choose the points (5,3) and (2,0) as (x1, y1) and (x2, y2) respectively:

m = (y2-y1)/(x2-x1)

m = (0-3)/(2-5)

m = -3/-3 = 1

now we get the equation using slope intercept form given by:

y - y1 = m(x - x1)

let's choose (5,3) as our (x1, y1),, substituting:

y - 3 = 1(x - 5)

y - 3 = x - 5

rearranging to standard form (note: standard for is Ax + By = C, where A,B and C are constants):

x - y = 2

..which is true based on our observation.

hope this helps~ :)

**Related Questions**

math algebra 2 - polynomial complete the table for -7x^4+8x^3-3x^2+5x-9 some ...

math plz help - Task 2: Use the table to complete each part. a. Copy the table. ...

science - periodic table - Some elements are missing, and others have no name ...

Chemistry - Complete the table by filling in the formula for the ionic compound ...

math - Complete the table for this question y=-1/2x+3 the table is x y 0 -2 -4 ...

math - complete the table given values of x. then use the table to solve the ...

Math - complete the function table below for the function F(x) =x2=2 . the ...

Com215 - Give a copy of Appendix D to a friend or family member and ask that ...

math - Copy each equation in Exercises 31–33. Replace the boldface italic letter...

math - complete the table for the equation y=x+6