"The sum of half a number and 13 is 9" DO NOT SOLVE, please just translate the equation.

Which must be true in order for the relationship △zyv ~ △xwv to be correct? zy ∥ wx ∠z ≅ ∠y and ∠w ≅ ∠x zv ≅ vy and wv ≅ vx ∠z ≅ ∠x and ∠w ≅ ∠y

Find the distance between (7,-6) and (-3,-9)

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2