The answer is D. y = -2x + 20. This is because it has a negative slope (-2x). When a number in a slope-intercept equation has the variable (x), that determines the positive or negative association. If it is a positive slope, it travels up from left to right. If it is a negative slope, it travels down from left to right.
Answer:
x + 3y = 21
Step-by-step explanation:

Equation of the line: y =mx+ b

Multiply the equation by 3
3y = -x + 21
x + 3y = 21
90 x 30 = 2,700
97 x 9 = 873
2,700 + 873 = 3,573
Answer: 
Step-by-step explanation:
Since, given 
And we know that 
Therefore, 
⇒
Thus, 
Answer:

[tex]huge/pink/answer[text]