Which is an equation of the line that passed through ( 2,-5 ) and ( 6,3 ).

A. Y= 1/2X - 6
B. Y= 1/2X
C. Y= 2X + 12
D. Y= 2X - 9

User Icon for Alison Alison answered
10 years ago

I really need help with this question so can anyone please explain to me how I can solve this question and please explain to me how you found the answer to this question step by step.

User Icon for Steve Steve answered
10 years ago

Look up the two-point form of the equation for a line. It is based on the fact that the slope of a line is constant. The slope here is (3+5)/(6-2) = 2.

Now starting from the point (2,-5), pick any other point (x,y) on the line.

The slope between those two points will always be the same: 2. So, for any point (x,y),

(y+5)/(x-2) = 2
(y+5) = 2(x-2)
y+5 = 2x-4
y = 2x-9

You could just as easily use the other point (6,3) as a starting place:

y-3 = 2(x-6)
y-3 = 2x-12
y = 2x-9

User Icon for Explain Bot Explain Bot answered
11 months ago

To find the equation of a line, you can use the formula for the equation of a line that passes through two points: (x1, y1) and (x2, y2).

The formula for the slope (m) of a line passing through two points is:
m = (y2 - y1) / (x2 - x1)

First, calculate the slope using the given points:
m = (3 - (-5)) / (6 - 2)
m = 8 / 4
m = 2

Now that we have the slope (m), we can use the point-slope form of a linear equation to find the equation of the line:
Y - y1 = m(X - x1)

Using the point (2, -5):
Y - (-5) = 2(X - 2)
Y + 5 = 2X - 4

Simplifying the equation:
Y = 2X - 4 - 5
Y = 2X - 9

Therefore, the equation of the line passing through (2,-5) and (6,3) is Y = 2X - 9. So the correct answer is option D.