Question

What is the equation of the graphed linear model?

y = x +

http://static.k12.com/calms_media/media/1549000_1549500/1549111/1/2645d5608dd2447fe0a945a17ea65ea92e58e6cb/MS_IMC-141014-181215.jpg

Answer 1

take 2 points on the line and find the slope using slope formula
slope(m) = (y2 - y1) / (x2 - x1)
(4,16) ....x1 = 4 and y1 = 16
(6,12)...x2 = 6 and y2 = 12
now we sub
slope(m) = (12 - 16) / (6 - 4)
slope(m) = -4/2
slope(m) = -2

y = mx + b
slope(m) = -2
use either of your points (6,12)...x = 6 and y = 12
now we sub and solve for b, the y intercept
12 = -2(6) + b
12 = -12 + b
12 + 12 = b
24 = b

so your equation is : y = -2x + 24

Answer 2

thx. ur a lifesaver. can u help me with some more?

Answer 3

@texaschic101