Trace horizontal positions on the coordinate plane first, marking each x-value where the drawn relation exists. Include endpoints shown by solid dots, exclude positions marked with open circles, use arrows to indicate continuation beyond visible limits.
Record vertical outputs by scanning from bottom to top, listing every y-value produced by the plotted curve. Watch for gaps created by holes or breaks, treat disconnected pieces separately, keep negative values in correct order.
Use interval notation with parentheses or brackets based on visual cues. Solid points require brackets, open markers require parentheses. Arrows translate into infinity symbols, written without brackets.
Check consistency by selecting test coordinates from multiple sections of the drawing. Each chosen input should map to a visible output, confirming that no values were skipped or added by mistake.
Practice Pages for Input Sets from Coordinate Plots
Mark each allowed x-position by scanning left to right across the coordinate plane, noting where the plotted relation appears. Solid dots signal inclusion, hollow markers signal exclusion, arrow tips show continuation beyond the visible window.
List produced y-values by reading bottom to top, capturing every height reached by the curve. Breaks, gaps, holes require separate notation segments, keeping negative outputs properly ordered.
Write results using interval notation with brackets for included limits, parentheses for excluded limits. Arrow symbols convert to infinity notation, written without brackets.
Verify accuracy by selecting several test coordinates from different sections of the drawing. Each selected input must align with a visible output on the plot, confirming no missing or added values.
Reading Horizontal Values Using Interval Notation
Scan the coordinate plane from left toward right, recording every x-location where the plotted relation exists. Filled markers signal inclusion, open markers signal exclusion, arrowheads indicate continuation past visible limits.
Translate each continuous span into interval form using brackets for included endpoints, parentheses for excluded endpoints. Negative infinity or positive infinity appear without brackets.
Break the notation whenever gaps, holes, or disconnected pieces appear. Each separate span requires its own interval entry, written in ascending order.
Confirm accuracy by selecting multiple x-positions inside each interval. Every selected input must align with a visible point on the plotted relation.
Vertical Output Identification Using Visual Cues
Read the vertical scale from bottom toward top, noting every y-level where the plotted relation appears. Solid points mark inclusion, hollow points mark exclusion, arrow tips show continuation beyond visible limits.
Convert each uninterrupted vertical span into set notation with brackets for included bounds, parentheses for excluded bounds. Use negative infinity or positive infinity without brackets.
Separate notation wherever gaps, holes, or disjoint pieces appear. Each distinct vertical segment requires its own interval entry, listed from lowest value upward.
Verify accuracy by selecting several y-levels inside each listed span. Every selected output must intersect a visible portion of the plotted relation.