The square of a number is 12 less than 7 times the number. what is the number?

–4 or –3

–4 or 3

–3 or 4

3 or 4

n = 3 or n = 4

Step-by-step explanation:

Let the unknown number be n.  Then:

n² = 7n - 12

In standard quadratic form, we have:

n² - 7n + 12 = 0

In factored form, we have:

(n - 3)(n - 4) = 0, and so n = 3 and n = 4 (same as the fourth answer choice)

D. 3 or 4

Step-by-step explanation:

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)