Answer:
slope- intercept form is
y=mx+b
m= slope
b= y-int
looking at the chart we can see that the graph goes up 11 and right 6
so we now have
y= 11/6x+b
we could also do
m=(y2-y1)/(x2-x1) using our points
m=(21-10)/(-3-(-9)
m=11/6
then we can use an x value and its corresponding y value from the equation to find b
I will use the points -9,10
10= 11/6(-9)+b
10=-16.5+b
+16.5 +16.5
26.5=b
so your full equation is:
y=11/6x + 26.5
Explanation: