The right triangle abc shown below is inscribed inside a parabola. point b is also the maximum point of the parabola (vertex) and point c is the x intercept of the parabola. if the equation of the parabola is given by y = -x2 + 4x + c, find c so that the area of the triangle abc is equal to 32 square units.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

6 spoons of sugar for every 21 cups of flour

step-by-step explanation: