Y=3x+7
this equation is in slope- intercept form (y=mx+b), so to translate up or down you add or subtract however many units you are translating to the b of the equation.
(f-g)(x) = x²+6x - (7-x)
(f-g)(x) = x² + 6x - 7 + x
(f-g)(x) = x² + 7x - 7
(f-g)(9) = 9² + 7*9 - 7
(f-g)(9) = 81 + 63 - 7
(f-g)(9) = 137
<em>Your question is incomplete; However, a similar question is:</em>
<em>If B is between A and C, AB = x, BC = 2x + 2, and AC = 14, find the value of x. Then find AB and BC.</em>
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<em>This should serve as a guide</em>
Answer:
See Explanation
Step-by-step explanation:
Given



Required
Determine x, AB and BC.
Since B is between A and C;

Substitute x for AB; 2x + 2 for BC and 14 for AC


Collect Like Terms

'


Substitute 4 for x in





