What is the standard equation of the parabola with vertex (-8,2) and directrix x=-10.5?

What signals you that factoring by grouping is the best method to use when factoring a problem?

Click the arrows to advance or review slides. mapping carbohydrates to food carbohydrates (grams) 15 food (quantity) bread (1 slice) pasta (1/3 cup) apple (1 medium) mashed potatoes (1/2 cup) broccoli (1/2 cup) carrots (1/2 cup) milk (1 cup) yogurt (6 oz.) 12 12 is jennifer's relation a function? yes no f 1 of 2 → jennifer figure out the difference between a function and a relation by answering the questions about her food choices

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.