Which of the following equations describes the line shown below? check all that apply. (-3,4) (-1,1)

a. y + 1 = -(x + 1)
b. y - 4 = -(x + 3)
c. y - 3 = -(x + 4)
d. y - 4 = -(x + 3)
e. y - 1 = -(x - 1)
f. y + 1 = -(x + 1)

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2