Question

If s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to (s circle t) (negative 7)?
–439
–141
153
443

Answer 1

(s circle t)(-7) means that you calculate t(-7), then take the result from this, and plug it into s(x).

so first plug in x = -7 into t(x), then take the result from that as your x-value, and plug it into s(x)