Jean needs to graph the function below
y= 7x^2 + 8x - 6
how many time should the graph of this function intersect at the x-axis?

a. 3
b. 2
c. 1
d. 0

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!