Answer:
b. x=6
Explanation:
to know which value of x is a solution
it is in the graph where the graph intersects the x line
there are 2 possibilites because the graph intersects the x line twice because it is a quadratic equation
on the graph where the two dots are, those are the two answers, about 1 and also 6
6 is one of your answers so it is the answer to your question
it can't be 12 because the dot is before 10
it can't be -1.8 or -28 because those are both negative numbers which the graph doesn't go through the -x part of the graph at all