Help, no time left; almost !

x = 50

Step-by-step explanation:

Since the triangle has 2 congruent sides then it is isosceles, thus the base angles are congruent, that is x and x

The sum of the angles in a triangle = 180°, thus

x + x + 80 = 180

2x + 80 = 180 ( subtract 80 from both sides )

2x = 100 ( divide both sides by 2 )

x = 50

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)