What is the equation of the line that passes through (1, 3) and (-2, -3)? y = -2x + 1 y = 2x + 1 y = x - 1 y = -x + 1
2 answers:
Answer: y = 2x+1
Step-by-step explanation:
It is the only line with (1,3) as a solution. A slower algebraic way to solve this would be to plug in 1 for x and 3 for y, then, out of the equations in which it works, plug in -2 for x and -3 for y. The equation that remains true for both points is the answer.
<em>Hope it helps <3</em>
Answer:
Step-by-step explanation:
The line passes through (1, 3).
The solution of the line is the points it crosses.
x = 1
y = 3
Plug x as 1 and y as 3 in the equation.
y = -2x + 1
3 = -2(1) + 1
3 = -2 + 1
3 = -1 <em>False</em>
Plug x as 1 and y as 3 in the equation.
y = 2x + 1
3 = 2(1) + 1
3 = 2 + 1
3 = 3 <em>True</em>
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Plug x as 1 and y as 3 in the equation.
y = x - 1
3 = 1 - 1
3 = 0 <em>False</em>
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Plug x as 1 and y as 3 in the equation.
y = -x + 1
3 = -(1) + 1
3 = -1 + 1
3 = 0 <em>False</em>
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