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Chevy
Mathematics
10 May, 17:27
Y+5=2 (x+1) determine the intercepts of the line?
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Chance Mueller
10 May, 17:52
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To find the Y-intercept, let X = 0. To find the X-intercept, let Y = 0.
Step-by-step explanation:
Let Y + 5 = 2 (X + 1) be the equation.
Y + 5 = 2 (X + 1) Y + 5 = 2X + 2 (Distributing 2 over the sum X + 1)
To find the X-intercept, let Y = 0 then solve for X:
0 + 5 = 2X + 2 (Substituting Y by 0) 5 = 2X + 2 (Evaluate) 5 - 2 = 2X (Simplifying by subtracting both sides by 2) 3 = 2X (Evaluate) 2X = 3 (Symmetric property of equality: see notes below) X = 3/2 (Evaluate by dividing both sides by 2)
Similarly, to find Y-intercept, let X=0 then solve for Y:
Y + 5 = 2 (0) + 2 (Substituting X by 0) Y + 5 = 2 (Evaluate) Y = - 3 (Evaluate by subtracting both sides by 5)
Note:
Symmetric Property of Equality "=" states that given an equation A = B, it is just equivalent to B = A. So, for the equation Y + 5 = 2 (X + 1), this is equivalent to 2 (X + 1) Y + 5.
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