What is f ( 1/3)? When the function is f(x) =-3x+7
2 answers:
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Answer:
Point slope form :
Slope intercept form:
Standard form :
Step-by-step explanation:
From the given graph it is clear that the line is passing through the points, (-4, 0), (-2, 1), (0, 2), and (2, 3).
If a line passes through two points and
, then the equation of line is
Let as consider any two points of the line: (2, 3) and (0, 2).
The equation of line is
The point slope form of the line is .
Add 3 on both sides.
Therefore the slope intercept form of the line is .
Multiply both sides by 2.
Therefore, the standard form of the line is .