Anyone know? will mark brainliest if correct

x=2

Step-by-step explanation:

Draw (on paper or in your imagination) a horizontal line at y = f(x) = 9.  This line will intersect the curve, once.  Place a dot at this point of intersection.  Now, carefully, draw a vertical line thru this point.  Approximate the x value at which this vertical line crosses the x-axis.  This is the approx. solution to your equation.  

f(x) = 9 at approx. x = 2.

Note well:  3^2 = 9.  This verifies our answer, that y = 9 when x = 2.

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.

if x decreases by 4 then y increases by 10

step-by-step explanation: