The functional equation of the line is f (x)=a*x+b
you have already a: -4 -->f (x)=-4 x+b
Now you can use the point (3;-3)
3 is the x-coordinate and -3 the f (x)-coordinate
--> -3 = -4*(3) + b Now you can solve it
-3 = -12+b (+12)
b = 9
ANSWER: f (x) = -4x + 9
Angle 1 = 2x - 30
angle 2 = x
2x - 30 = x
2x - x = x
x - 30 = 0
0 + 30 = 30
x = 30
X - the number of hats on Monday
So, he had 40 on Monday.
Answer:
Yes, any set is a subset of itself.
Step-by-step explanation:
N/A