Step-by-step explanation:
Real numbers include:
Rational numbers include
Fractions, Integers
Integers include
Negative Integers, Whole numbers
Whole numbers include
Zero, Natural number
Irrational numbers
Equation of straight line is y=mx+c ,here m is slope in given question m is 1/4.
Hope it helps you.
Answer:

Step-by-step explanation:
Hi there!
Slope-intercept form:
where <em>m</em> is the slope and <em>b</em> is the y-intercept (the value of y when x=0)
<u>1) Determine the slope (</u><u><em>m</em></u><u>)</u>
where two points that fall on the line are
and 
Given the graph, we determine which points we could use. For example, we could use the two points
and
:

Therefore, the slope of the line is -6. Plug this into
:

<u>2) Determine the y-intercept (</u><u><em>b</em></u><u>)</u>
Recall that the y-intercept occurs when x=0. Given the point (0,2), we know that the y-intercept is 2. Plug this into
:

I hope this helps!
Slope = vertical length / horizontal lengthn = 15/100 = 0.15