SOLUTION: How do you write an equation for the relation in the chart ?? x -2 0 2 4 y 9 5 1 -3

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: How do you write an equation for the relation in the chart ?? x -2 0 2 4 y 9 5 1 -3      Log On


   

Question 101890: How do you write an equation for the relation in the chart ??
x -2 0 2 4
y 9 5 1 -3
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the constant change in x (2) is matched by a constant change in y (-4) so the graph is linear with a slope of -4/2 or -2

the y-intercept is one of the values in the chart (when x=0) ... 5

so the equation in slope-intercept form is y=-2x+5