The slope is -1/4, which is -0.25x. We know that we are exactly 8 units to the left of the y axis, so we can use the slope to determine the change within the coordinates as the line moves across the graph. The slope has a rise of -1 and a run of 4, meaning every 4 units to the right will be 1 unit up. We must move 8 units to the right, which in turn moves the graph down 8 quarter units. 8 x (1/4) is 2, so we know that the graph has moved down 2 units. (Down because the graph has a negative slope). (-8,3)->(0,1). From this coordinate, we can see the y intercept is 1. Since y=mx+b, we can write y=-1/4x+1. This is your equation. (Sorry for the length, wanted to be thorough)
8^2 = 64 since 8*8 = 64
Squaring a number is the same as multiplying it by itself.
Since 8^2 = 64, this means
1/64 = 1/(8^2) = 8^(-2)
So, 1/64 = 8^(-2)
where the exponent is negative 2
<span><span>72006000</span>=1.2</span>i.e. it increases by 20% in three hours you can model this as<span>6000×(1.2<span>)<span><span>t3</span></span></span></span>
