4
3
2
1
Correct answer is C
y = 2kx2 + x + 1
Gradient function dy/dx = 4kx + 1
at dy/dx = 9, => 9 = 4kx + 1
=> 8 = 4kx, and k = 8/4x.
At x = 1, k = 8/4 = 2
In the diagram, O is the centre, ¯RT is a diameter, < PQT = 33o and <TOS = 76\(^...
If P =[x+3x+2x+1x−1] evaluate x if |P| ...
The sum of the first n terms of the arithmetic progression 5, 11, 17, 23, 29, 35, ... is? ...
If 2x + y = 10, and y ≠ 0, which of the following is not a possible value of x?...
PQRS is a cyclic quadrilateral. If ∠QPS = 75°, what is the size of ∠QRS?...
Find the quadratic equation whose roots are c and -c...
The perimeter of an isosceles right-angled triangle is 2 meters. Find the length of its longer ...
The subtraction below is in base seven. Find the missing number. 5 1 6 2seven -2 6 4 4seven -----...