Answer:
5x^2-20x
Step-by-step explanation:
distribute the 5x to the x and the -4
6 is the answer because it is 6x therefore the gradient increases by 6 each time
C. y= [25,100]
you need brackets because the points actually touch the number
Answer: x=4, y=-2
Step-by-step explanation: 4x+y=14, x-2y=8
4x+y-y=14-y
4x/4=14/4-y/4
x=14-y/4-(2y)(4)/4
4(14-9y)/4=(8)(4)
14-9y-14=32-14
-9y/-9=18/-9
y=-2
(14)-(-2)/4
14+2/4
16/4
4
x=4
x=4, y=-2
Do you mean like you cant close your 4 because teachers may think its a nine? Or different ways like written, numeraly and all that?
