Question

will give medal and I will fan!
what Is the domainof the function {(2,1); (4, 2); (6,3); (8, 4)}?
1, 2, 3, 4}
{1, 2, 3, 4, 6, 8}
{2, 4, 6, 8}
{6,8}

if f(x) varies directly with x and f(x) = 4 when x = 12 then what is the value of f(x) when x = 60?

5
20
180
300

given the function T(z) = z - 6 find T(-4)

-10
-2
2
10

what is the truning point of the graph of f(x) = |3x| + 1?

(0, 0)
(-1/3, 0)
(0, 1)
(-3, 0)