Answers
>
Maths
>
A Level
>
Article
Solve the equation: 2x+3y=8 & 3x-y=23
2x+3y=89x-3y=6911x=77x=7
2(7)+3y=83y=8-14y=-2SOLUTION : x=7, y=-2
Answered by
•
Maths tutor
6231 Views
See similar Maths A Level tutors
Related Maths A Level answers
All answers ▸
The curve C has equation: (x-y)^2 = 6x +5y -4. Use Implicit differentiation to find dy/dx in terms of x and y. The point B with coordinates (4, 2) lies on C. The normal to C at B meets the x-axis at point A. Find the x-coordinate of A.
How do you find the coordinates of stationary points on a graph?
The point A lies on the curve with equation y=x^0.5. The tangent to this curve at A is parallel to the line 3y-2x=1 . Find an equation of this tangent at A. [5 marks]
Write 5x^2 + 30x + 36 in the form 5(x+A)^2+B where A and B are integers to be found.Then write the equation of symmetry for the graph of 5x^2 + 30x + 36