3x(d+7) < 5d-13 (I think it is
F(x) = 3x - 5
f(2) = 3 (2) - 5
f (2) = 6-5
f (2) = 1
Answer:
y = - x² - 15x - 56
Step-by-step explanation:
y = - (x + 8)(x + 7) ← expand factors using FOIL
= - (x² + 15x + 56) ← distribute parenthesis by - 1
y = - x² - 15x - 56 ← in standard form
3x + y = 6. You're free to choose any x values you wish (at least, for this linear function). So, if you chose x = 0, y would be 6, and you'd enter 0 6 in the first row of the given table.
If you chose x = -2, then -6 + y = 6 and y would be 12. Enter -2 12 in the second row of the table.
You could also choose y values and calculate the related x-values.