Based on the quadratic model, what was the approximate number of workers that were hired during the seventh year?
1 answer:
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,
3x = 9
Divide by 3
x = 3
3x = 9
Divide by 3
x = 3
If you go from point (-1, -3) to point (4, 4), you can find the slope of the line using the slope formula. 
. So our slope is 7/5. The line goes through the y axis at -3/2, so putting that together we get an equation for the line that is 
, choice D from above.