When y= 55, x= 1/4. What is the value of y when x is 2.5?
1 answer:
Answer:
y = 550 when x = 2.5
Step-by-step explanation:
various ways to work this through: one simple way is to do cross method. arrange the numbers into fractions like this and then multiply the ones diagonal from each other
then multiply 55*2.5 together. multiply 0.25 and y together. Now you have this:
137.5 = 0.25y
solve for y and you get y = 550
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Answer:
(4, 1)
Step-by-step explanation:
Since the first reflection is over the vertical line x=-3, the y-coordinate remains the same. The x-coordinate of A' will make the point (-3, 4) on the line of reflection be the midpoint between A and A':
(-3, 4) = (A +A')/2
2(-3, 4) -A = A' = (-6-(-7), 8 -4) = (1, 4)
The reflection over the line y=x simply interchanges the two coordinate values:
A'' = (4, 1)
