Your friend, Patricia, is having a hard time understanding the concept behind the domain and range of a parabola. Using complete sentences, explain the meaning of the domain and range of the graph of
y = -x2 + 4x - 21 and how to find both. Keep in mind, your goal is to help Patricia understand the "concepts", not just how to use the steps.
Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
The domain is all the possible x values that exist in the graph. On the graph -x^2 +4x-21, no matter which x value you choose, there is a corresponding y value. Even if your x is infinity, negative infinity, or zero, the parabola exists there, so your domain is "all real numbers."
thank you so so so much but i need the range too
The range is all the possible y values. In the above said parabola, the highest is ever reaches is -17. The graph just doesn't exist higher than that. So the range is "all real numbers less than or equal to -17."