The domain of y = ax^2 + c is all real numbers. Describe the range when (a) a > 0) and (b) a < 0. a. range when a > 0 b. range when a < 0

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step-by-step explanation:

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step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

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plug in the numbers into the variables

your answer is a