What happens to the maximum point of f(x)= -2x2+ 3x+1, when the function is changed to f(x) = -2x2+ 9x + 1?

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

The school board administered a math test to all students in grade 66 at high achievers charter school and determined that 15\%15% of them were below grade level in math. based on this data, which of the following conclusions are valid? choose 1 choose 1

Angle 1 and angle 2 are a linear pair . m angle 1 =x-39 and m angle 2 =x+61 find the measure of each angle