Thursday, November 12, 2009

Y-Intercepts and Coefficients

Today we continued the work we did yesturday on y-intercepts and coefficints.

To review, the y-intercept is the point were the line crosses the y axis, and the coefficient is the number multiplied by the variable. In the Emile and Henri problem, Henri's equation is d=1t+45. 1 is the coefficent of t, and the y-intersect is 45.

Using this we started Problem 3.5 on page 55. This problem was about Finding the Point of Intersection.

"At Fabulous Fabians's Bakery, the expenses E to make n cakes per month is given by the equation E=825 +3.25n. "
In this equation, we are identifying things like the y-intercept (825), and th coefficient (3.25) and finding the income using another formula I=8.2n.

Allie G.

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