Answer:
y = -x + 10
Step-by-step explanation:
Slope Formula:
Slope-Intercept Form: y = mx + b
Step 1: Find slope <em>m</em>
m = (11 - 9)/(-1 - 1)
m = 2/-2
m = -1
y = -x + b
Step 2: Find y-intercept <em>b</em>
9 = -(1) + b
9 = -1 + b
b = 10
Step 3: Rewrite linear equation
y = -x + 10
Since there are three kids, 3x3=9. 80-9=71. Danny and Mark and Evans ages combined is 71 years
It would be right 2, up three since whatever is in the parenthesis is the opposite of what you would think it is but the outside number of positive goes up but if negative goes down