Hey guys, it's Jo! Sorry for the late post, I'm really lazy. During lesson 2 we talked about x and y intercepts. and how to calculate them. When calculating an x intercept y=0 and when calculating the y intercept x=0 so you can use the formula to graph the intercepts. There can be as many intercepts as the degree of the function allows (ex: -4< x^3<7 has a maximum of 3 x intercepts.). We also did an example with a car that was bought (new) for 20,000 and calculated how the value decreased over time, by using the formula V= 20,000-1250t, V being value and t being time, with V on the y axis and t on the x axis. (for example: t (imput) = 3. 20,000 - (1250x3) = 20,000 - 3750 = 16,250 $, therefore V=16250$(output) therefore, the ordered pair is 3,16250)
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