Over a million students use our free study notes to help them with their homework
Firstly, let us try to calculate the values for a and b to obtain an equation for the curve. To do this we will substitute the coordinates we are given into y=x2 + ax + b:Substituting in (0, -5...
Completing the square is an algebraic method that can be used to solve a quadratic equation and find the coordinates of a turning point of a graph. Let's use x2 + 4x -5 = 0 are our example.Firs...
D= (18,11)
First we use the equation gradient = (y1-y2)/(x1-x2) to find the gradient of the line L, using point A (-1,3) and point B (2,-3). This gives us gradient = (3-(-3)/(-1-2) = (3+3)/(-3) = -2. Now we subst...
(a+b)2 actually means (a+b)x(a+b) and so you have to solve this the long way unfortunately. You can use the grid method to do this [I would write this out on the whiteboard function at this poi...
←
74
75
76
77
78
→
Internet Safety
Payment Security
Cyber
Essentials
