PLEASE HELP WITH THIS QUESTION

a) 0.8( 8/10 gives 0.8)

b)0.7( if it was 7/100 it would have been

0.07)

c)3.5( by converting mixed fractions to improper fractions, that is, 3×2+1 and having the same denominator 2… we get 7/2… for the purpose of converting it to decimal, 7×5/2*5= 35/10… by moving one decimal place to the left, we get 3.5)

D) 2.5 ( the same way as c) 5*5/2*5: 25/10 or you can make it to be 5*50/2*50: 250/100 which still gives 2.5)

Option B -  y=-3(x+3)^2+6

Step-by-step explanation:

Step 1:

The equation of any parabola in the standard form with vertex at the origin is y^2 = 4ax  . When it opens upward, the equation would be x^2 = 4ay

When the vertex is shifted to a point other than the origin, the equation would be

(x-h)^2 = 4a(y-k)

Step 2 :

Given that the vertex of the parabola is at  (-3, 6). We will have the x and y co-ordinate shifted with this value.

So the equation of the parabola will have x and y shifted to x-(-3)) and y-6

=> x+3 and y-6

Step 3:

Based on the above 2, we can see that option B  y=-3(x+3)^2+6 could be the equation of the parabola.