Answer:
y=8x+4
Explanation:
follow the formula y=mx+b where m is the slope and b is the y intercept
first find the slope, which is the rate of change, using the equation (y2-y1)/(x2-x1). i substituted the values from x=0 as (0,4) for the first coordinate and x=1 as (1,12) for the second coordinate from the chart and filled them into the equation:
so (12-4)/(1-0)=8/1= 8
so the slope is 8
and the y intercept is the y value when x=0, which can be seen on the chart as 4. so y=8x+4