diff --git a/js/common/view/AreaUnderCurvePlot.ts b/js/common/view/AreaUnderCurvePlot.ts
index b1717500..e676c266 100644
--- a/js/common/view/AreaUnderCurvePlot.ts
+++ b/js/common/view/AreaUnderCurvePlot.ts
@@ -37,7 +37,7 @@ export default class AreaUnderCurvePlot extends Node {
                       curve: Curve,
                       chartTransform: ChartTransform,
                       xProperty: TReadOnlyProperty<number>,
-                      providedOptions?: AreaUnderCurvePlotOptions ) {
+                      providedOptions: AreaUnderCurvePlotOptions ) {
 
     const options = optionize<AreaUnderCurvePlotOptions, SelfOptions, NodeOptions>()( {
 
diff --git a/js/common/view/AreaUnderCurveScrubberNode.ts b/js/common/view/AreaUnderCurveScrubberNode.ts
index 5bf8dd27..443e3dec 100644
--- a/js/common/view/AreaUnderCurveScrubberNode.ts
+++ b/js/common/view/AreaUnderCurveScrubberNode.ts
@@ -26,7 +26,7 @@ export default class AreaUnderCurveScrubberNode extends ScrubberNode {
 
   public constructor( areaUnderCurveScrubber: AreaUnderCurveScrubber,
                       chartTransform: ChartTransform,
-                      providedOptions?: AreaUnderCurveScrubberNodeOptions ) {
+                      providedOptions: AreaUnderCurveScrubberNodeOptions ) {
 
     const options = optionize<AreaUnderCurveScrubberNodeOptions, SelfOptions, ScrubberNodeOptions>()( {
 
diff --git a/js/common/view/CueingArrowsNode.ts b/js/common/view/CueingArrowsNode.ts
index 6af52a6f..de406d1d 100644
--- a/js/common/view/CueingArrowsNode.ts
+++ b/js/common/view/CueingArrowsNode.ts
@@ -31,7 +31,7 @@ type CueingArrowsNodeOptions = SelfOptions & NodeTranslationOptions &
 
 export default class CueingArrowsNode extends VBox {
 
-  public constructor( providedOptions?: CueingArrowsNodeOptions ) {
+  public constructor( providedOptions: CueingArrowsNodeOptions ) {
 
     const upArrow = new ArrowNode( 0, 0, 0, -ARROW_LENGTH, ARROW_NODE_OPTIONS );
     const downArrow = new ArrowNode( 0, 0, 0, ARROW_LENGTH, ARROW_NODE_OPTIONS );
diff --git a/js/common/view/CurveManipulationWidthSlider.ts b/js/common/view/CurveManipulationWidthSlider.ts
index 16c34bef..6bbf8f00 100644
--- a/js/common/view/CurveManipulationWidthSlider.ts
+++ b/js/common/view/CurveManipulationWidthSlider.ts
@@ -25,7 +25,7 @@ type CurveManipulationWidthSliderOptions = SelfOptions & PickRequired<HSliderOpt
 export default class CurveManipulationWidthSlider extends HSlider {
 
   public constructor( curveManipulationWidthProperty: Property<number>,
-                      providedOptions?: CurveManipulationWidthSliderOptions ) {
+                      providedOptions: CurveManipulationWidthSliderOptions ) {
 
     // an array of numbers corresponding to the positions of the ticks (in model coordinate)
     const tickValues = [ ...Array( NUMBER_OF_TICKS ) ].map( ( x, i ) =>
diff --git a/js/common/view/GraphsNode.ts b/js/common/view/GraphsNode.ts
index e284abe2..d658e842 100644
--- a/js/common/view/GraphsNode.ts
+++ b/js/common/view/GraphsNode.ts
@@ -33,12 +33,13 @@ import CalculusGrapherPreferences from '../model/CalculusGrapherPreferences.js';
 import CurvePoint from '../model/CurvePoint.js';
 import AreaUnderCurveScrubberNode from './AreaUnderCurveScrubberNode.js';
 import TangentScrubberNode from './TangentScrubberNode.js';
+import PickRequired from '../../../../phet-core/js/types/PickRequired.js';
 
 const GRAPH_NODE_Y_SPACING = 20; // vertical space between GraphNode instances, in view coordinates
 
 type SelfOptions = EmptySelfOptions;
 
-type GraphsNodeOptions = SelfOptions & StrictOmit<NodeOptions, 'children'>;
+type GraphsNodeOptions = SelfOptions & StrictOmit<NodeOptions, 'children'> & PickRequired<NodeOptions, 'tandem'>;
 
 export default class GraphsNode extends Node {
 
@@ -67,7 +68,7 @@ export default class GraphsNode extends Node {
 
   private readonly graphSetsAnimator: GraphSetsAnimator;
 
-  public constructor( model: CalculusGrapherModel, providedOptions?: GraphsNodeOptions ) {
+  public constructor( model: CalculusGrapherModel, providedOptions: GraphsNodeOptions ) {
 
     const options = optionize<GraphsNodeOptions, SelfOptions, NodeOptions>()( {
 
diff --git a/js/common/view/TangentScrubberNode.ts b/js/common/view/TangentScrubberNode.ts
index 69d5cc25..357b21f6 100644
--- a/js/common/view/TangentScrubberNode.ts
+++ b/js/common/view/TangentScrubberNode.ts
@@ -24,7 +24,7 @@ export default class TangentScrubberNode extends ScrubberNode {
 
   public constructor( tangentScrubber: TangentScrubber,
                       chartTransform: ChartTransform,
-                      providedOptions?: TangentScrubberNodeOptions ) {
+                      providedOptions: TangentScrubberNodeOptions ) {
 
     const options = optionize<TangentScrubberNodeOptions, SelfOptions, ScrubberNodeOptions>()( {