What is the equation for the following graph?
a. y=-4
b. y=4
c. x=4
d. x=-4

x=4

Step-by-step explanation:

Consider the coordinate pair (4,y)

We observe that,

y can take any real values to lie on the graph of the equation.

As y really isn't a constant, we exclude it and take the equation as x=4

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation: