Search over 10,000 free study notes

To solve these simultaneous equations we first need to eliminate one variable (the x or the y). For this we will need the coefficients (numbers in front of the variables) to be equal or opposite on one va...

1. Rearrange both equations into the form ax + by = c. 3x+3y = 12.5 6x +2y = 5. 2) Make either x or y have the same coefficient in each equation. In this case we use x, to do this we multiply the first...

x^2 - 7x - 18

X coordinates = (-3+1)/2 = (-2)/2 = -1Y coordinates = (-3+3)/2 = (0) /2 = 0 Coordinates of the midpoint = (x,y) = (-1,0)
If they were struggling to visualise it/to avoid simple mist...

h² = 25So firstly, we must square root each side of the equation.(square root) h² = (square root)25.so... h= (square root)25.h=5. or h=-5.