Question

Can someone plz help me with this??

Answer 1

it's the second choice (3=3)

Answer 2

y = - x + 4

Explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m =
`(y_(2)-y_(1) )/(x_(2)-x_(1) )`

with (x₁, y₁ ) = (1, 3) and (x₂, y₂ ) = (3, 1)

m =
`(1-3)/(3-1)` =
`(-2)/(2)` = - 1 , then

y = - x + c ← is the partial equation

To find c substitute (1, 3 ) into the partial equation

3 = - 1 + c ⇒ c = 3 + 1 = 4

y = - x + 4 ← equation of line