What type of line is the graph of 4x + y = -3? A.) vertical B.)horizontal C.)rising D.)falling
usually x is input, and y is the resulting height. we can re-arrange by subtracting 4x from both sides: y = -4x -3
slope is negative so you can judge. slope=tan of the angle made with X-axis.
so what time of graph would it be?
for every run of ONE x to the right, the height DECREASES 4 y f(x) = -4x f(1) = -4 f(2) = -8 f(3) = -12
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