Find the slope of the secant line between the values and for the function given below. The slope of the function is _? How would I slove this?

Plzzz maths ! quadratic sequences=an^2+c 1) 11,17,27,41,59 2) 7,16,31,52,79 3) 6,18,38,66,102 4) 0,9,24,45,72 5) 0,12,32,60,96

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle