PLEASE HELP WITH THIS EASY MATH QUESTION, WILL MARK AS THE BRAINLIEST!!! EXPLANATION NEEDED!

B

Step-by-step explanation:

The vertex form for a parabola is a(x-h)^2+k, where a is how much the graph is stretched vertically, h is the x displacement from the origin, and k is the y displacement. In this graph, it is stretched by a factor of -2 (which means that it is more steep and points down). It is also slid 1 to the right and 2 up. This matches graph B. Hope this helps!

17

step-by-step explanation:

51/3=17

thus 17 is your answer.

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct