Andy solve an equation as shown below. What error did Andy make?
1 answer:
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To find the second point noted. Set each equation given to 0.
And
Then find the intersection point of each. I used my calculator and the intersect function but I believe you can do it mathematically as well. The point is (-2,1).
Then to build the equation I used the slope formula and used the slope to move across the graph to the y intercept.
The equation is
And
Then find the intersection point of each. I used my calculator and the intersect function but I believe you can do it mathematically as well. The point is (-2,1).
Then to build the equation I used the slope formula and used the slope to move across the graph to the y intercept.
The equation is