Which one the on number 1 ?
Answer:
Step-by-step explanation:
x=2
Answer:
Jack ran 38 km and Ted ran 43 km.
Step-by-step explanation:
Let Jack’s displacement be 
Answer:
Step-by-step explanation:
1.
(-2,0) (0,-7) y2-y1
-----------------
x2-x1
-7-0= -7
0- (-2)= 2 ------>>> -7/2 =m or slope
2.
y= -7/2x+b to find b u plug in one pair of coordinates for example (-2,0)
and use inverse properties to find b
0 = -7/2(-2) + b
14/2 = 7
0= 7+b
-7 -7
-----------
-7=b
3.
y=-7/2x-7
Answer:
Step-by-step explanation:
x+20=11x+30 minus x from both sides
20=10x+30 minus 30 from both sides
-10=10x divide by 10
x= -1
