The answers I think are
A. 1:25
B. 64%
C. 4
Answer:
2 real solutions
Step-by-step explanation:
y = -x^2 + 3x + 5
First find the the discriminant:
using b² - 4(a)(b)
(3)²- 4(-1)(5)
=9+20
=29
since the discriminant is more than 0, there are 2 real solutions
.86, 7/8, .9 is least to greatest
This is fun
one way is to aproximate by getting values closer and closer to the value
the small negative sign on the top left of the 4 means we need to aproximate from the left, or from values less than 4 to 4
so like using 3.9, 3.99. 3.999, etc
if we did 3.9, we get 0.1/-0.1=-1
if we did 3.99, we get 0.01/-0.01=-1
if we did 3.999, we get 0.001/-0.001=-1
I notice a pattern
so therefor I say the limit as x approaches 4 from the left is -1
It’s the last one bc if u look at it closely 1/2 means it goes up one block and to the right 2 till it hits the line again
