Answer:
The slope of a line is change in Y / change in X. The slope of a horizontal line = 0, not undefined. The slope of a vertical line = undefined.
Answer:
$12.75
Step-by-step explanation:
If you multiply 4.25 by 3 then you get 12.75.
Answer:
x = 5, x = -5
Step-by-step explanation:
First, you can notice both terms of the equation are divisible by 2, so you can factor it out to get:
2(x^2 - 25) = 0
You can recognize the expression x^2 - 25 as the special product for the difference of squares, so it would be factored into (x + 5)(x - 5). When we plug it in we get:
2(x + 5)(x - 5) = 0
Now, we can use the zero-product property to get two equations:
x + 5 = 0
-and-
x - 5 = 0
Solving them both we get:
x = 5, x = -5
