Answer:
Step-by-step explanation:
B) Small triangle:
height = 20 - 15 = 5
base = 1
height to base = 5 :1
Medium triangle :
height = 60 -30 = 30
base = 2
height to base = 30 :2 = 15 :1
Large triangle:
height = 120 - 60 = 60
base = 4
height to base = 60 : 4 = 15 : 1
c) The ratios are same. This is true because wage and working hours are in direct proportion.
E) Take any two points. (1 , 15) & (2 , 30). Find the slope.
Slope = Change in y ÷ change in x
m = (30-15) ÷ (2 -1) = 15/1 = 15
y -y1 = m(x -x1)
y - 15 = 15(x - 1)
y - 15 = 15x - 15
y = 15x - 15 + 15
y = 15x
