1. Any number to the power of 0 is 1.
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2x2+1x-3=0 4+x-3=0 x+1+0 x=-1 is your final answer
2x2-7x+3 = 0 (2x-1)(x-3) = 0 x = 1/2 or x = 3
x = 1, y = 0
3x2-4x-15 = 0 (3x+5)(x-3) = 0 x = -5/3 or x = 3
y = 4(2x) is an exponential function. Domain: (-∞, ∞) Range: (0, ∞) Horizontal asymptote: x-axis or y = 0 The graph cuts the y-axis at (0, 4)