Question 65041: Please help write an equation for this:
x -2 -1 0 1 2
f(x) -5 -2 1 4 7
Thanks.
Answer by funmath(2933)   (Show Source):
You can put this solution on YOUR website! Please help write an equation for this:
x -2 -1 0 1 2
f(x) -5 -2 1 4 7
If you were to plot these points and connect them, you'd see you have a line. In order to write the equation of a line, you need a point and a slope. You have plenty of points, but no slope. The slope formula in function notation is:
Choose any two points you want:
(x1,f(x1))=(1,4) and (x2,f(x2))=(0,1)
m=3
Now that you have a slope, m=3 and the y-intercept (0,b)=(0,1), you can plug them into the slope intercept form of a line and have the equation you're looking for.
 , m=slope and (0,b)=y-intercept
Your m=3 and b=1
Happy Calculating!!!
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