Hello! Charchar here!
Answer:
Ans: n = -4
Step-by-step explanation:
General equation of the Line that passes through the 2 points
A(1, 1) and B(-2, 4) --> y = ax + b.
A(1, 1) --> 1 = a + b (1) --> b = 1 - a
B(-2, 4) --> 4 = -2a + b (2).
4 = -2a + 1 - a --> -3a = 3 --> a = -1 --> b = 1 -(01) = 2
Equation of the line AB --> y
=
−
x
+
2
Write that the line AB passes through C (6, n):
n = - 6 + 2 = -4
graph{-x + 2 [-10, 10, -5, 5]}
Hope this helped!
Have a nice day!
First, define the area of a triangle: A = 1/2bh. Let A = 16, and since it’s a right triangle, the base and the height can easily be translated to its two legs. Let one leg = x, and the other = x + 4. So this would give you the equation: 16 = .5(x)(x+4). Distribute so 16 = .5x^2 + 2x. You might want to get rid of the decimal/fraction, so multiply everything by 2 and this would give you 32 = x^2 + 4x. Recognizing that this will be a quadratic equation let x = 0 and bring everything unto one side, so 0 = x^2 + 4x - 32. Factor. 0 = (x+8)(x-4). Since a leg cannot be negative, x can only equal 4. This means that one leg is 4 and the other is 8.
Use x+2y=8
Subtract 2y to make
x=8-2y
Plug this in to the other equation
3(8-2y)+2y=6
Distribute the 3
24-6y+2y=6
Combine like terms
24-4y=6
Solve
18/4=y, 9/2=y
Plug and solve for x
X+2y=8
X+(2*9/2)=8
X+9=8
X=-1
You should simply do this:
82-66=16