Given the point (2,3) and the slope of 4, find y when x =22
y = mx + b
3 = 8 + b
3 - 8 = b
-5 = b
m = 4 and b = -5
y = 4x - 5
x = 22:
y = (4 x 22) - 5
y = 88 - 5
y = 83
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Here, We know, y = mx + b
3 = (4)(2) + b
3 = 8 + b
b = 3 - 8
b = -5
Now, y = (4)(22) - 5
y = 88 - 5
y = 83
In short, Your Answer would be 83
Hope this helps!