Answer:
x = 13.5
Step-by-step explanation:
direct variation
y = kx
substitute x and y to find k
8 = k*6
divide by 6
8/6 =k
4/3 = k
y = 4/3 x
now put in y =18
18 = 4/3 x
multiply by 3/4
18 * 3/4 = 3/4 * 4/3 x
54/4 = x
change to a decimal
13.5 =x
Answer:
Step-by-step explanation:
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Explanation is in the file
tinyurl.com/wtjfavyw
Y=-sqrt(x)+1
x must be greater than or equal to zero (positive): x>=0
Options Graphs 1 and 2
when x=0→y=-sqrt(0)+1=-0+1→y=1, then the graph must pass through the point (0,1)
Answer: Graph 2
