Percent increase = (new number - original number) / original number...* 100
= (2075 - 1195) / (1195)...* 100
= (880 / 1195) * 100
= 0.736 * 100
= 73.6 rounds to 74% <==
Eric made $80. To check the work you would multiply 80 by 3 you get 240 then minus $20 you get $220 then combine $80 you get $300!
1) first step
you must do( a+b) ^2 = a^2+2ab+b^2
then
2)second step
y = -3(x+1)^2 +4 = -3( x^2+2x+1) +4⇒ y = -3x^2-6x-3 +4, y = 3x^2-6x+1
now the graph of this function is
Answer:
y=2.5x - Proportional
y= x - 4 - Not Proportional
Step-by-step explanation:
A linear function that is proportional is in the form y =kx (k is the constant of variation) and passes the origin.
The first equation given is in this form (2.5 is the constant) and it passes through the origin. It is proportional.
However, the second one is not proportional is it does not pass the orgin and it's not in y=kx form.
Hope this helps.