Solve for x: 3-x+x^2-x^3+x^4-x^5+...=14/5, where |x|<1

Write an equation of the line given the two points below (write your equation in slope-intercept form, y=mx+b): (-4, 4) and (6, -4)

15 point ! ~ see if you know the answer to both you!

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?