Type of slope is if it is negative or positive so looking from left to right does the line go down or up. For 1 it is positive but for 3 it is a negative slope. And triangle y(delta y)/ delta x is basically y2-y1/x2-x1. So pick two point and plug In the numbers. So slope of number one is 1/2 ( you could also count the rise over run from one point to another too)
Answer:
x=4
Step-by-step explanation: 2x - 3 = 5 ( Move the Terms ) ~ 2x - 8 ( Divide each ' Term ' ) ~ x = 4.
Erin age = e
Maddie age = m
E= M+3
because Erin = Maddies age + 3 years
Answer:
I don't know this stuff, but it is -20.