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1/16/20
early in the semester physics notes regarding graphing
xo- gg
10.5.18
these are literally the nicest math notes i’ve ever taken in my whole life. also, note to self, academic coffee makes a really good hot chocolate. on top of that, here are some nice lights from the main building on campus.
listening to: my pace - stray kids
Graphing Linear Inequalities
-- for the vertical line x = a -- if x > a, shade the half-plane to the right of x = a -- if x < a, shade the half-plane to the left of x = a
-- for the horizontal line y = b -- if y > b, shade the half-plane above y = b -- if y < b, shade the half-plane below y = b
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Graphing a Linear Inequality in Two Variables
1. replace the inequality sign with an equal
2. solve
3. graph: -- use a solid line if the original inequality contains (greater than or equal to) or (less than or equal to) -- use a dashed line if the original inquality contains < or >
4. choose a test point, not on the line
5. substitute the coordinates of the test point into the inequality
6. true or false? -- if it is false, shade the half without the point -- if it is true, shade the half with the point