What is an equation in slope intercept form for the line that passes through the points (1,-3) and (3,1)

A. Y=3x+1
B. Y=x-3
C. Y=2x+5
D. Y=2x-5

y = 2x - 5

Step-by-step explanation:

Step 1: find the slope

m = y2 - y1 / x2 - x1

Given :

( 1 , -3) ( 3 , 1)

x1 = 1

y1 = -3

x2 = 3

y2 = 1

Insert the values

m = 1 - (-3) / 3 - 1

= 1 + 3 / 3 - 1

= 4 / 2

m = 2

Step 2 : using a point slope form equation

y - y1 = m( x - x1)

Using the second slope

( 3 , 1)

x1 = 3

y1 = 1

y - 1 = m( x - 3)

y - 1 = 2 ( x - 3)

Step 3: using a slope intercept form equation

y = mx + c

Open the bracket

y - 1 = 2x - 6

y = 2x - 6 + 1

y = 2x - 5

The equation of the line in slope intercept form is

y = 2x - 5

idn

step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,