Which rule matches the pair x = 9, y = 43 and also has a constant increase of 4 in y for every 1 increase in x?
Note
A constant increase of 4 means the coefficient of x is 4. Since 4×9+7=43, the correct rule is y = 4x + 7.
Which rule matches the pair x = 9, y = 43 and also has a constant increase of 4 in y for every 1 increase in x?
A constant increase of 4 means the coefficient of x is 4. Since 4×9+7=43, the correct rule is y = 4x + 7.