Which of the following is represented by the above sketch...
Which of the following is represented by the above sketch?
y = x2 + x - 6
y = x2 - x - 6
y = x2 - x + 6
y = x2 + x + 6
Correct answer is B
From the graph, the zeros of the equation exist at x = -2 and x = 3
∴ (x + 2) = 0 and (x - 3) = 0
\implies (x + 2)(x - 3) = 0
x^2 - 3x + 2x - 6 = 0
x^2 - x - 6 = 0 is the equation represented on the graph.
Similar Questions
At what value of x is the function y = x2 - 2x - 3 minimum?...
A regular polygon has each of its exterior angles as 18o. How many sides has the polygon...
If y = x sin x, Find \frac{d^2 y}{d^2 x}...
If f(x) = 2(x - 3)^2 + 3(x - 3) + 4 and g(y) = \sqrt{5 + y}, find g [f(3)] and f[g(4)]....
Solve the equations: 4x -y = 11; 5x + 2y = 4. ...
If A = { 1, 2, 3, 4, 5, 6}, B = { 2, 4, 6, 8 }. Find (A – B) ⋃ (B – A). ...