Answer:
-2/3
Step-by-step explanation:
To find the slope of two points
m = (y2-y1)/ (x2-x1)
= (-4-2)/(1--8)
= (-4-2)/(1+8)
= -6/9
-2/3
Answer:
Distance from Earth to Proxima Centauri (in scientific notation) =
kilometers
Step-by-step explanation:
We need the conversion between Astronomical Unit and Kilometers.
The conversion is:
1 AU = 1.496*10^8 km
or rounded, given in this problem,
1 AU =
km
We need the distance from Earth to Proxima Centauri:
AU *
kilometers
When multiplying two numbers in scientific notation, we have to "multiply the coefficients" and "add the exponents".
Lets do this:

Distance from Earth to Proxima Centauri (in scientific notation) =
kilometers
Mmmmmmmmmmmmmm mmmmmmmmmmmmm
It would be -3,7! This is because we're reflecting the x-axis not the y-axis
The line intersect at zero points. ( the lines are parallel)
The lines intersect at infinitely many points