Find the slope of the line that passes through the pair of points (2,6) , (7,0)

Which set of reflections would carry trapezoid abcd onto itself? a) x-axis, y=x, y-axis, x-axis b) x-axis, y-axis, x-axis c) y=x, x-axis, x-axis d) y-axis, x-axis, y-axis, x-axis

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?