Answer:
linear
Step-by-step explanation:
if you have access to a graphing calculator then enter the equation and you can see it forms a line
if you have graph paper, create some coordinates, plot and connect them
example of some ordered pairs could be:
(0, 7)
(2, 6)
(-2, 8)
I think this answers all the parts
Hope this helped :)
Answer:
19xy + 16z
Step-by-step explanation:
combine like terms
7xy +1 2xy= 19xy
8z - 2z + 10z = 16z
y = x^2 -4x
x = -1
y = (-1)^2 - 4×-1=1+4 = 5
x= 0
y = (0)^2 - 4×0 = 0
x = 1
y = 1^2 -4×1 = 1-4 = -3
x = 2
y = 2^2 -4×2 = 4-8 = -4
x=3
y = 3^2 - 4×3 = 9-12 = -3
x = 4
y = 4^2 - 4×4 = 16 - 16 = 0
now 2nd equation
y = 2x^2 + x
x = -2
y = 2 (-2)^2 + (-2)= 8-2 = 6
x = -1
y = 2 (-1)^2+(-1)= 2-1 = 1
x = 0
y = 2(0)^2 +0 = 0
x = 1
y = 2 (1)^2 + 1 = 3
x = 2
y = 2(2)^2+2= 8 + 2 = 10
Step-by-step explanation:
if 900 is increased by 20% then
120/100×900=1080
Decreasing it by 20% then
80/100×1080=864