Question 1115500: 1. What is the equation of the line through (1,2) and (3, -1)?
2. What is the vertex of f(x) = x2 – 6x + 3?
3. Using points, straight lines, and possibly the curve of a parabola, construct a piecewise function whose graph looks like a smiling face.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! 1. What is the equation of the line through (1,2) and (3,-1)?
Not "the equation," an equation.
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There are several ways to find one, and it's been done on this site 1000's of times. Look it up.
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2. What is the vertex of f(x) = x2 – 6x + 3?
Use ^ (Shift 6) for exponents.
f(x) = x^2 – 6x + 3
The vertex is on the line of symmetry, x = -b/2a
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3. Using points, straight lines, and possibly the curve of a parabola, construct a piecewise function whose graph looks like a smiling face.
No.
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