Line 1: We are given the points (-3, 1) and (-7, -2).
Line 2: We are given the points (2, -1) and (8, 4).
In order to calculate the slope, we use the formula:
m = (y2-y1)/(x2-x1)
Substitute in the points to find the slope.
Line 1: (-2 - 1)/(-7 - (-3)) = -3/-4 = 3/4.
Line 2: (4 - (-1))/(8-2) = 5/6.
X - 8 = y
where x = the original length of the board
and y = the correct length of the board :)
More information is needed to find the original or end lengths of the board.
I think is f(1) not g(1)
f(x) = -3x + 8
subtitute the value of x = 1 to the equation:
f(1) = -3(1) + 8 = -3 + 8 = 5
Answer:
option C is correct
Step-by-step explanation:
We need to find the determinant.
= -1(7*9 - 3*9)-( -3)(4*9 - 3*3) -2(4*9 -7*3)
= -1(63-27) +3 (36 - 9) -2( 36- 21)
= -1(36)+3(27)-2(15)
= -36+81-30
= 15
Option C is correct
The answer Is A :)))))))))))))
