Antoinette needs to solve this system of equations by graphing. Which statements explain how she should graph the equations? Check all that apply. 2 x minus 7 y = 56. y = negative 2.5 x + 4. She should rewrite both equations in slope-intercept form. She should rewrite the first equation in slope-intercept form. She should find that the second equation has a slope of 4. When rewriting the first equation, she should subtract 2x from each side of the equation to get –7y by itself. After rewriting the first equation in slope-intercept form, she should find that both lines have negative slopes.

A. She should rewrite both equations in slope-intercept form.  

(this step is true in general, but only the first requires the rewriting for this particular example, so become ambiguous).

B. She should rewrite the first equation in slope-intercept form.

D. When rewriting the first equation, she should subtract 2x from each side of the equation to get –7y by itself.

(this is just the first part of the step of the rewriting)

Step-by-step explanation:

Antoinette needs to solve this system of equations by graphing. Which statements explain how she should graph the equations? Check all that apply.

2 x minus 7 y = 56.

y = negative 2.5 x + 4.

A. She should rewrite both equations in slope-intercept form.  

B. She should rewrite the first equation in slope-intercept form.

C. She should find that the second equation has a slope of 4.

D. When rewriting the first equation, she should subtract 2x from each side of the equation to get –7y by itself.

E. After rewriting the first equation in slope-intercept form, she should find that both lines have negative slopes.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.