Recall: {{MATH_10}}. {{CMD_11}} {{ENV_12}} {{CMD_13}} Recall: {{MATH_14}} {{CMD_15}} {{CMD_16}} Recall: {{MATH_17}}. Determine the value {{MATH_18}} from the graph. {{CMD_19}} For {{MATH_20}}, we can express {{MATH_21}} as {{MATH_22}} {{CMD_23}} Recall: {{MATH_24}} for {{MATH_25}}. {{CMD_26}} {{CMD_27}} Recall: {{MATH_28}} for {{MATH_29}}. {{MATH_30}} is a linear function on the interval {{MATH_31}}. {{CMD_32}} For {{MATH_33}}, we can experss {{MATH_34}} as {{MATH_35}} {{CMD_36}} Recall: {{MATH_37}} for {{MATH_38}}. This definite integral gives signed area of the region between the graph of {{MATH_39}} and the interval {{MATH_40}} on the {{MATH_41}}axis. This region is a triangle with the base {{MATH_42}} and the height {{MATH_43}}. Compute the area of the triangle! {{CMD_44}} {{MATH_45}} {{CMD_46}} This integral gives the area of the region between the graph of {{MATH_47}} and the interval {{MATH_48}} on the {{MATH_49}}axis. Use geometry! It can be expressed as {{MATH_50}}. {{CMD_51}} {{CMD_52}} {{CMD_53}}