Answer:
<h2>
<em><u>Irrational</u></em><em><u> </u></em><em><u> </u></em></h2>
Step-by-step explanation:
<em><u>Firstly</u></em><em><u>, </u></em>
According to rational and irrational,

<em><u>Since</u></em><em><u>,</u></em>
Natural numbers, Whole Numbers and Integers all come under <em><u>Rational</u></em><em><u> </u></em><em><u>number</u></em><em><u>.</u></em>
<em><u>Hence</u></em><em><u>,</u></em>
<em><u>
</u></em>
<em><u>Is</u></em><em><u> </u></em><em><u>an</u></em><em><u> </u></em><em><u>irrational</u></em><em><u> </u></em><em><u>number</u></em><em><u>. </u></em>
The distance between two point in the cartesian coordinate system is:
d^2=(x2-x1)^2+(y2-y1)^2
d^2=(1-1)^2+(18--4)^2
d^2=0+484
d=22 units.
In this case we could have seen that the x coordinate did not change and just said the distance was 18--4=22 units, but that is rarely how you will solve these problems :P
The x intercept is (-10, 0)