the answer is d
step-by-step explanation:
x² + 3x + 7 = 0 [ax² + bx + c]
a = 1
b = 3
c = 7
quadratic formula:
(+/- is this ±)
plug in the numbers into the variables
your answer is a
step-by-step explanation: 2
graph b
one solution- graph a (clear intercepting point.)
no solution- graph b (they're parallel, there will never be a point of interception.)
infinite solutions- graph c (all points intercept.)