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Straight Line and slope

A) Explain what is the y-intercept and which letter represents it in the equation
y = mx +b.

b) If a and b are positive numbers, what is all the information we can deduce about the relationship between the lines: L1: y = - ax + b and L2: y = (1/a)x + b?

Solution Preview

a) Explain what is the y-intercept and which letter represents it in the equation
y = mx +b.
Solution: y-intercept is the distance from the origin where a ...

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