Which equation represents a line perpendicular to the line shown on the graph?
-8+
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2-digit numbers less than 91 which are 1 less than a multiple of 10

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?