f(x) = x^2 + x +1. Find the sum of all values of z for which f(3z) = 7
Is it 3x^2 +3x + 1 = 7 so z = 1 and -2....so the answer is -1
also, in general say you have f(x) ....how does the graph change (domain range, intercepts, max, min) if you make it, for example:
f(-2x)
.5f(x)
f(x-2)
f(x)+2
thanks for the first part
but i am confused..why a quadratic....the function doesnt matter i just wanna know how manipulating inside and outside the perenticies with different operations affects the graph in the form of domain range, min, max and both intercepts