Answer:
y = -0.5x + 1
Step-by-step explanation:
slope-intercept form is y=mx+b where m = slope and b = y-intercept
b = y value when x = 0
as shown in the chart, when x = 0, y = 1 so b = 1
m = vertical change/horizontal change
as shown in the chart, when x moves 2u right, y moves 1u down
m = -1/2 = -0.5
plugging in m and b into the formula y=mx+b, we get:
y = 0.5x + 1