Which value of x satisfies both -9x+4y=8 and -3y-y=4

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a