Which value of m will create a system of parallel lines with no solution?

y = mx – 6

8x – 4y = 12

answer:

420 miles

step-by-step explanation:

to start, let's find the distance between a and b when they both start moving. this is two hours after the car starts moving, and that is 2*60=120 miles. there are 620 miles total, so they are 500 miles apart when they both start moving. notice that they are moving in opoposite directions, so every hour they will get 60+40=100 miles closer to each other, so it will take 500/100=5 hours to meet. to find the distance from city a, we need to find how far the car moved, which is just 2+5=7 hours times 60 mph or 420 miles away from city a.

step-by-step:

for example,

(x+4)(x-4)(x-3)

group the first two and do foil like normal ignoring the "(x-3)"

you should end up with the answer x^2-16

now multiply (x^2-16) with (x-3)

that answer should be x^3-3x^2-16x+48

the first step here is to define what a function is, right? so here's the definition:

a function is an equation that has only one answer for y for every x

because of this, we now rule out "c" and "d" as correct answers right of the bat. actually if you are experienced enough to know, you will realize that "b" is also eliminated right away as well because it deals with {(absolute value)}.

now, just make sure that if you do have anymore questions do not be afraid to ask me! just punch that like button and make sure to send me a friend request, an i'll be sure to get back to you.