Answer:
Slope is 2.
Step-by-step explanation:
Slope is 
Sin = opposite / hypotenuse
cos = adjacent / hypotenuse
using pythagoras theorem =
adjacent = 5^2-3^2
= 16
= square root 16
=4
cos x = 4/5
Rational number because for a number to be irrational it needs to have a decimal or be smaller than 1
Step-by-step explanation:
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