The equation y = 2x + 1 is changed to y = 2x - 1. How does this change the graph of the line?
2 answers:
Answer:
D) The original line will shift down 2 units.
Step-by-step explanation:
The <em>rate</em><em> </em><em>of</em><em> </em><em>changes</em><em> </em>[<em>slopes</em>] remain the same [2], so all you need to do is figure out how much far is from
and that would be two units:
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Where:
a = x coordinate of a center
b = y coordinate of a center
r = radius of a circle
Motion detector can detect person anywhere within a boundary. The greatest distance at which detector can detect is at the edge of a circle. That distance, between detector and edge of circle, is equal to radius.
From the equation we have:
The greatest distance at which person can be detected is 4ft.
This is an equation of a circle. General form of a circle equation is:
Where:
a = x coordinate of a center
b = y coordinate of a center
r = radius of a circle
Motion detector can detect person anywhere within a boundary. The greatest distance at which detector can detect is at the edge of a circle. That distance, between detector and edge of circle, is equal to radius.
From the equation we have:
The greatest distance at which person can be detected is 4ft.