Here is the answer
Domain: (- infinity, infinity)
Range: [0, infinity)
Answer:
C) y = -1/4x
Step-by-step explanation:
find slope by selecting two points -- I used (0, 0) and (-4, 1)
slope is the difference of the y-values: 1 - 0 = 1
divided by the difference of the x-values: -4 - 0 = -4
slope = -1/4
the other thing you need to know is the y-intercept, which in this case is zero
so the equation is y = -1/4x
I am gonna use substitution method.
Solve for y in first equation,
y + 4x = 8
y = 8 -4x
Put the above y value in second equation,
5x + 2y = 13
5x + 2(8-4x) = 13
5x + 16 - 8x = 13
-3x = 13-16
-3x = -3
x = -3/-3
x = 1/1 = 1
Put the x value in first equation,
y + 4x = 8
y + 4(1) = 8
y = 8 - 4
y = 4
Hence, the solution is (1,4)
I think its 4y2 im not for sure but hope it help
He tells us that the 4 daughters have a brother, so, since they belong to the same family, the sisters are the same because they have only one brother.
Answering our question:
or Mr. Smith has 4 daughters and also 1 son.
