Question

The function f(x) = -X2 - 2x + 15 is shown on the graph.

Answer 1

Answer:

Domain: all real numbers.

Range: $y\leq 16$

Step-by-step explanation:

A quadratic equation is any equation/function with a degree of 2 that can be written in the form $y = ax^2 + bx + c$, where a, b, and c are real numbers, and a does not equal 0.

The domain of a function is the set of all real values of x that will give real values for y. To determine the domain of the quadratic function, look for the left-most and right-most x-values on the graph.

The range of a function is the set of all real values of y that you can get by plugging real numbers into x. To determine the range of the quadratic function, look for the lower-most and upper-most y-values on the graph.

The graph of $f(x)=-x^{2}-2x+15$ is shown below.

Since the graph continues down toward the left and down toward the right, the domain contains all real numbers, from negative infinity to positive infinity.

Domain: all real numbers.

Since the maximum y-value of the function is 16 and the graph continues to extend downward, the range contains all real numbers less than or equal to 16.

Range: $y\leq 16$

Answer 2

Answer:

Step-by-step explanation:

i can't see graph.

$f(x)=-x^2-2x+15=-(x^2+2x+1-1)+15=-(x-1)^2+1+15=-(x-1)^2+16\\domain=all~real~numbers.$

Range≤16

so A