① 5J+2S =12.20 ② 5J+ 10S =15.80 elimination method
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X-intercept - (9/4, 0)
Y-intercept - (0, 3)
Y-intercept - (0, 3)
Most of the graphing resources used shows that the graph is translated up by 3.25 (3 + 1/4). If you add the 3 and the 1/4, you get the equation of a line:
f(x) = x + 3.25,
which means that the graph of f(x)= x now has a y intercept of 3.25.
The graphs are below. The red line represents f(x) = x, and the green line represents (x+3)+1/4. Hope this helps!
