Answer:
The fourth option.
Step-by-step explanation:
In the given equation x^2 + 4x + 9 = 0, a=1, b=4, and c=9. The quadratic formula is in the attachment below so if you plug in a, b, and c you get the fourth option.
Answer:
y = 0.8x + 4
Step-by-step explanation:
The slope is 0.8 and y intercept is 4.