Answer:
um
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
9 ^(2x-1) = 3 ^ (-x+8)
Rewrite 9 as 3^2
3^2 ^(2x-1) = 3 ^ (-x+8)
We know a^b^c = a^(b*c)
3^(2 *(2x-1)) = 3 ^ (-x+8)
3 ^ (4x-2) = 3 ^ (-x+8)
The bases are the same so the exponents are the same
4x-2 = -x+8
Add x to each side
4x-2+x = -x+x+8
5x-2 =8
Add 2 to each side
5x-2+2 = 8+2
5x = 10
Divide each side by 5
5x/5 = 10/5
x=2
A fraction is numerator over denominator, most of the time whole numbers
Answer:
C
Step-by-step explanation:
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)