lorry804
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The equation y = 2x + 1 is changed to y = 2x - 1. How does this change the graph of the line?
A) The original line will shift down 1 unit.
B) The original line will shift left 1 unit.
C) The original line will shift left 2 units.
D) The original line will shift down 2 units.

Respuesta :

texaschic101
y = 2x + 1
y = 2x - 1

so the 1st one has a y int of 1 and the second one has a y int of -1...so the original line will shift down 2 units
BasketballEinstein

Answer:

D) The original line will shift down 2 units.

Step-by-step explanation:

The rate of changes [slopes] remain the same [2], so all you need to do is figure out how much far [tex]\displaystyle [0, 1][/tex]is from [tex]\displaystyle [0, -1],[/tex] and that would be two units:

[tex]\displaystyle -1 + 2 = 1[/tex]

I am joyous to assist you anytime.

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