Question 709394: How do I Find the equation of a secant line containing the given points: (5, f(5)) and (7, f(7)) with the given function F(x)=4x-8?
Answer by josgarithmetic(39618)   (Show Source):
You can put this solution on YOUR website! The secant line? You have two points for this line, so you use them as given to find the line. Two points determine a line. You have the function which gives the y coordinate in the pair of points. Evaluate F(5) and F(7).
The two points are: (5, ) and (7, ). Those coordinates computed, the points are (5,12) and (7,20).
More?
m=(20-12)/(7-5)
m=4.
y-intercept?
y=mx+b, b=y-mx, use either point:
b=20-4*7, b=-18,
Line wanted is  , the secant line that contains (5, f(5)) and (7, f(7)).
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