Question

Find the equation of the line specified.
The line passes through the points ( 2, 1) and ( 5, 4)
a.
y = x + 1
c.
y = x - 1
b.
y = -x - 1
d.
y = x + 3

Answer 1

first you need to find the slope using the slope formula...
slope(m) = (y2 - y1) / (x2 - x1)
(2,1) x1 = 2 and y1 = 1
(5,4) x2 = 5 and y2 = 4
now we sub
slope(m) = (4 - 1) / (5 - 2)
can you finish and tell me the slope ?

Answer 2

whats the answer im on a time crunch

Answer 3

slope is 1.

y = mx + b
slope(m) = 1
(2,1) x = 2 and y = 1
now sub
1 = 1(2) + b
1 = 2 + b
1 - 2 = b
-1 = b

equation is : y = -x - 1