A line that includes the point (-9, -2) has a slope of -9. What is its equation in point-slope

9x- y = 79

Step-by-step explanation:

Use the formula    y - y1 = m (x - x1)

point: (-9,-2)  x1= -9   y1= -2

slope: -9

plug everything in    y + 2= -9 (x + 9)

simplify   y + 2= -9x - 81

move the 2 to the other side    y = -9x - 79

move the -9x to the other side    -9x + y = -79

multiply the whole thing by -1 to make the x positive

9x - y = 79

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.