Question

can you check my answer please
solve using the multiplication principle:
8x=-56
the solution is x = -7 is this correct?

Answer 1

yes it is correct:
8x=-56
divide both sides by 8
u would get:
8x/8=-56/8
x=-7 so good work my friend

Answer 2

thanks kushashwa
could you find the slope if it exists;
x=-5

Answer 3

assuming this is the equation of a line. you set it up
y=-x-5
y=mx+b
Compare the two equations, slope is m, or coefficient of x.

Answer 4

chagunanas therefore the slope is considered undefined

Answer 5

Why undefined? m or coefficient of x is -1.

Answer 6

someone else gave the answer as undefined since you are given and x coordinate only it goes straight up and down if you were given y coordinated the slope would be zero

Answer 7

You didn't give me a lot of info; that is why I said 'assuming that is equation of line.' So x=-5 is an x intercept. The method I was using works if you have the equation of the line.

Answer 8

x=-5 usually refers to a straight line along -5. In that case, a straight line, the slope is always 0.

Answer 9

No, no, I got that wrong, it is a vertical line. So may be that guy is right.

Answer 10

see the problem states only:
x=-5 find the slope if it exists

Answer 11

Yeah, consider a line going straight up in the air, that's what the guy means when he says undefined.