Step-by-step explanation:
The quadratic formula is:
A, in this case, is -2.
B is 5
C is -11
x = 
x = 
x = 
x = 
and 
We can break up the fraction to make it easier on our eyes
x = 
≈1.9843
x = 
Answer:
y = -3x + 30
Step-by-step explanation:
First, find the slope using the slope formula:
m = (y2 - y1) / (x2 - x1)
m = (9 - (-3)) / (7 - 11)
m = -12/4
m = -3
Next, find the y-intercept by substituding one of the two points into what the equation is so far:
y = -3x + b
(7, 9)
9 = -3(7) + b
9 = -21 + b
30 = b
Now you have the full equation:
y = -3x + 30
Answer:
for the second picture: the answer is 15 hours
Step-by-step explanation:
174 miles is for 3 hours, divide that by 3 to find how many miles per hour it is, 870 divided by 58 will give you the number of hours; 15. hope this helps!
Answer:
B. False
Step-by-step explanation:
This graph is not a function. The graph fails the Vertical Line Test.
