y +7=3x
How do you solve this if it is not in a normal format?
y+7=3x
-7 -7
y=3x-7
y intercept=-7
slope=3 rise 3, run 1
L-28 Page
How do I find the y intercept in any equation? Even a funky equation.
Class Rule
Find the y-intercept:
Put the equation into regular format (y=mx+b). The + or - b is the y-intercept. Remember, always do the same thing to both sides. Only y on the y-side.
Use that rule to solve this problem.
(y+4) = 2x
6
y=12x+4
1. Parallel
y=12x+7
y=12x+2
*Slope stays the same, change y-intercept
2. Perpendicular
y=-12x+4
y=-1/12x +4
y=24x+4
*Clara and Boa think: Change the slope to it's opposite (positive then make it negative, negative then
make it positive)
*Max thinks: Turning it into a fraction
***Class is still not sure about perpendicular
