#graphing notes

[er-cryptid]

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[ggsstudies]

1/16/20

early in the semester physics notes regarding graphing

xo- gg

[moonstarbujo]

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

[er-cryptid]

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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[er-cryptid]

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