Question

Please help me :(
1. A local min of y=x^3+2s^2-1 is?
2.The y-intercept of y=x^3+2x^2-1 is ?
3.The y-intercept of y=x^2+4x-2

Answer 1

so in the 1st equation is it

\[y = x^3 + 2x^2 - 1\]

Answer 2

2.The y-intercept of y=x^3+2x^2-1 is ?

Substitute 0 for x in the above equation and crank out the value of y for the y-intercept.

Answer 3

3.The y-intercept of y=x^2+4x-2

Do the same here as for number 2.

Suggestion: Check and see if #2 or #3 asked for the x-intercept, okay?

Answer 4

Is there supposed to be an "s" in this polynomial with the x^3 ?

1. A local min of y = x^3 +2 s^2 - 1