{(x-2) + 2y
3 + 7
- 3x = x² - 4x + 7
2x-1​

Identify the polynomial. a2b - cd3 a.monomial b.binomial c.trinomial d.four-term polynomial e.five-term polynomial

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?