Answer:
slope=3,y-intercept=6
Step-by-step explanation:
Slope is the rate of change so It is an independent variable and has an x at the end
The y-intercept is the initial value which is technically the start off and the number 6 seems to be a dependent variable.
Answer: 100 miles
300+3x=500+1x
subtract 1 from both sides
300+2x=500
subtract 300 from both sides
2x=200
divide 2
x=100
option D
