6. Write the equation of the parabola in vertex form.

A. y = x2

B. y = 1/4x^2 + 1

C. y = 1/4x^2

D. y = 1/4( x - 2)^2 + 1

if x decreases by 4 then y increases by 10

step-by-step explanation:

a

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116