You can use the discriminant rule, which is :
b^2 -4ac
“exactly one solution” means that it is equal to zero
so:
b^2 -4(4)(9)=0
b^2 -4(36)=0
b^2 -144=0
b^2=144
square root both sides
b=12 or -12
hope this helps !
Answer:
huh
Step-by-step explanation:
wheres the angle??????
B it is between 30 and 60
Answer:
What do u mean?
Step-by-step explanation:
I think they all will make it a function.
