Thank you for the opportunity to help you with your question! the solution is as such:

The standatd form is y= 2( x + 1.5)^2 - 2.25

The vertex is (-1.5 , - 2.25)

The x intercept is - 0.75

The y intecept is = 2.25

Please let me know if you need any clarification. I'm always happy to answer your questions.awaiting a positive feedback. It was lovely helping you. in case of a wrong answer or doubt please discuss before taking any action. Please do contact or tex