First you differentiate to find the gradient
dy/dx = (6 - - 8) / (-4 - 7)
= 14 / -11
= - 14/11
Then you use this formula
y - y1 = m (x - x1)
y1 being the y coordinate
x1 being the x coordinate
m being the gradient (or slope)
y - 6 = -14/11 (x - - 4)
y - 6 = -14/11x - 56/11
y = -14/11x + 10/11
Answer:
-87
Step-by-step explanation:
-(-7^2) + 6(-7) + 4
-49 -42 + 4
-87
Y=4^x-3 translated down 3 units
y=4^x+3 translated up 3 units
y=-4^x-3 translated down 3 units and vertical reflection
y=-4^x+3 translated up 3 units and verticals reflection
Well the first term = 1 because (n - 1) = 0 for the first term
So its either A or D
4th term = 1 + (4 - 1)(-5.7 = 1 + 3*-5.7 = -17.1
Its C