Cheatography

# Math M03 quiz 1 Cheat Sheet by Berger42

### Function Notation

 Treat f(x)=y aka solve for x disregard f(x) then plug into y (3.3) Slope intercept form etc also applies tooo
f(x)­=-2x
f(x) = -2(0)
'plug in a rando #'
you plugged in 0 for x so x=0, the answer you got was 0 so y=0

### Solutions

 No solution: answer is different numbers or letters Infinitely Many solutions: Both sides of equation are identical

### Linear inequa­lities

 Infinity always has parent­hesis brackets apply to the greate­r/less than or equal to sign and when you divide a negative inequality term, you swap the >,< etc.

### Consec­utive Integers ### Substi­tution Method ### Elimin­ation method ### Graphing formulas

 Point Slope y-y1=m­(x-­x(1)) Slope interc­ept y=mx+b Stan­dard Ax+By=C Slope Formula y-y(1) over x-x(1) when in doubt make a table

### Function

 For each x there is exactly one y in the range

### Lines

 Para­llel Same slope Perp­end­icu­lar Slope is a negative reciprocal of the other line