How to find the slope from two points (14, -69) and (17, -57)

See attachment below and find the equivalent of tan(∠qsr)

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.