Question

Graph the function f(x)=2x^3+x+1 for the values of x from -5 to 5. Which of the following statements...?

Answer 1

Here are my answers but I just want to double check:

1. I think the y-values are always positive is false.
2. I think the y-values are positive when x is positive is true.
3. I think the y-values are all positive when x is negative is false.
4. I think the y-value at x = 0 is 0 is false.
5. I think the y-value at -2 is -17 is true.
6. I think the largest y-value for x between -3 and 3 is 58 is true.
7. I think the smallest y-value for x between -3 and 3 is 58 is false.
8. I think the y-values are all negative when x is negative is true.

Answer 2

@Michele_Laino I just have one more question and I think I have the right answers I just want to see what you think?

Answer 3

I draw your graph, with desmos, please wait

Answer 4

we have this:

Answer 5

ok! that's right!

Answer 6

I got all of them right 1 to 8?

Answer 7

yes!

Answer 8

ok thank you again!

Answer 9

:)

Answer 10

so im only marking 4 of the choices as true