Given:
The point W(5,-4) is reflected over the x-axis.
To find:
The coordinates of the point W' after the reflection.
Solution:
If a point is reflected across the x-axis, then
Using this rule of reflection, we get
The coordinates of the point W' are (5,4). The correct option is C.
Answer: y = x - 4
-y = 4 - x (Original)
Multiply by -1.
y = -4 + x
Reorder the terms.
y = x - 4
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Answer:
A
Step-by-step explanation:
Domain is the first number in the ordered pairs and range is the second number. (I'm sorry if it's wrong)
Hope it helps!
Mean, x_bar = 1518
Standard deviation, sigma = 325
Range required: 1550 ≤ X ≤ 1575
Z = (X - x_bar)/sigma
Z1 = (1550-1518)/325 ≈ 0.1
Z2 = (1575-1518)/325 ≈ 0.18
From Z tables,
P(Z1) = 0.5398
P(Z2) = 0.5714
P(1550≤X≤1575) = P(Z2) - P(Z1) = 0.5714 - 0.5398 = 0.0316
The correct answer is C.