complete the word problem and fill in the blanks with the correct answers

Check below, please.
1) In this question, let's fill in the gaps bearing in mind the concepts within a Linear Equation
1. The measure of the steepness of a line is called slope
We can see that through the points of an equation.
2. if the equation is written in the form y=mx +b the letter m is the value of the ...
Usually, we represent the slope by "m" but there are some authors who do it by using the letter "a"
3. The slope of a horizontal line is 0
A horizontal line does not have steepness.
4. The slope of a vertical line is undefined
That's because in the slope formula we would have a zero on the denominator
5. If the graph of a line moves upward from left to right, the line has a positive slope:
6. If the graph of a line moves downward from left to the right the line has a negative slope:
7. Given two points of a line, the slope =
[tex]\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ \frac{change\: in \: y}{ change\: in\: x} \end{gathered}[/tex]