Question

The graph of the function f(x) = (x − 3)(x + 1) is shown.

Answer 1

Answer:

Real values of x where x < -1

Step-by-step explanation:

Above the x-axis, the function is positive.

The function is decreasing when the gradient is negative.

The function has a positive

${x}^{2}$

coefficient, therefore the vertex is a local minimum;

This means the gradients are negative before the vertex and positive after it;

To meet the conditions therefore, the function must be before the vertex and above the x-axis;

This will be anywhere before the x-intercept at x = -1;

Hence it is when x < -1.

Answer 2

Answer:

Real values of x where x < -1

Step-by-step explanation:

i did the test