a) x+1+x+1+x+1+x+1=56 x=6.5
b) 2(6.5)+1=14cm
Answer-
y = -1x or y = -x
Explanation-
Step 1: Look for a pattern in the x column and the y column.
X = -1, 3, 7, 11
(The pattern is that you add 4 with every number)
Y= 0, -4, -8, -12
(The pattern is that you subtract 4 with every number)
Step 2: Create and (if needed) simplify the slope
Slope = y/x
Slope -> -4/4
Simplified Slope -> -1
Step 3: Put it in slope-intercept form
Slope-intercept form -> y = mx + b
y = -1x + 0 -> y = -1x or y = -x
