Answer:
I will show you how it is done the EASY WAY
Step-by-step explanation:
Step 1: Desmos
Step 2: Plug-in eqaution
Step 3: See if the parabola is facing up or down
Step 4: Faces down so vertex is -3,-7
Step 5: Max value= vertex x-value
Step 6: Almost there!! -3 is yr x-value
Step 7: FINALIZE IT: Max value is -3 A
