Question

Domain and range problem Help

Answer 1

The range is the span of y-values. What is the smallest possible y-value and what is the largest possible y-value?

For this problem, the y-values start at -1 and decrease infinitely. Therefore, the range is y <= -1.

The domain is the span of x-values. What is the smallest possible x-value and what is the largest possible x-value?

For this problem, the parabola will keep expanding horizontally (or to the left and right). Therefore, the range is all real numbers.

Hope this helps!

Answer 2

Range y≤-1

Domain all reals

Explanation:

The range is the output values (y)

Y is less than or equal to -1

y≤-1

The domain is the values that the input can take

the arrows on the ends of the graph tells us x can take all real numbers