Get the slope:
( 10-(-2) )/( 3 - (-1) ) = 3
Let's use letters to represent the ?'s.
y + k = m(x + 1)
Examine the equation:
Notice that if x were to equal -1, the equation would be equal to 0.
m(-1 + 1) = m(0) = 0
If x were to be -1, then y would have to be -2 since that is one of the points provided in the problem.
So now we have:
-2 + k = 0
Solve for k:
k = 2
So I know that 2 is the only number that will work for k.
Our new equation is y + 2 = m(x + 1)
Recall point slope form:
y - y1 = m(x - x1)
Our equation is in the same form as point slope form, so we know that m in our equation represents the slope.
We found the slope at the beginning, it was 3. So plug it in:
y + 2 = 3(x + 1)
Let's test our answer by plugging in a point. Let's try (3, 10):
10 + 2 = 3(3 + 1)
12 = 12
So our answer is correct:
y + 2 = 3(x + 1) is the answer.
Answer:
A, 10 of the new puppies are male and 10 are female
Step-by-step explanation:
Really this is the one that makes the most since because if 10 of the puppies are male, then 10 must be female.
Answer:
Step-by-step explanation:
x-y=-3
y=-3x+1
x-(-3x+1)=-3
y=-3x+1
x+3x-1=-3
y=-3x+1
4x=-3+1
y=-3x+1
4x=-2
y=-3x+1
x=-2/4
y=-3x+1
x=-1/2
y=-3(-1/2)+1
x=-1/2
y=3/2+1
x=-1/2
y=3/2+2/2
x=-1/2
y=5/2
(x,y)=(-1/2,5/2)
