exam Maths Puzzle Numerical Ability

solve the solution

y=3^(2x+1)
y=9^(4-2x)

do you make the powers = one another for 2x+1=4-2x

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exam Other Question

How would I write the equation of the line with slope 5 and y-intercept (0,-3)? Find the vertex, the line of symmetry, and the maximum/minimum value of f(x). Then, graph the function.

f(x) = -(x+2)^2 - 4

The vertex is:
The line of symmetry is:
The maximum/minimum value is:
Graph the function.