Y = ax^2
If the absolute value of a is <1 the graph is wider than when a = 1
If the absolute value of a is >1 the graph is narrow than when a = 1
The only function that fits that description is
y = 2x^2
B <<< answer.
original quantity : 10 for $1
new quantity: 4 for $1
now we have to find each percent change
10-4=6
6÷100=0.06
0.06=6%
the quantity went down 6%
Answer:
75
Step-by-step explanation:
If the triangles are similar, it means the ratio between the two give sides is the same. As seen from the smaller triangle the ratio of the two top sides would be 16:50 or 8:25.
Since the first side of the bigger triangle (24) is three times 8 (it's ratio side), then the other side must be 3x25 = 75, which maintains the ratio 8:25 between the two sides (24:75).
Hope this helped!
4. y=4x-7 ---- first equation
y=2x+9 ---- second equation
substitude first equation into second equation
4x- 7 = 2x + 9
2x = 16
x = 8 --- third equation
substitude third equation into first equation
y = 4(8) - 7
y = 25
5. 8x+2y=-2 ---- second equation
y=-5x+1 ---- first equation
substitude first equation into second equation
8x + 2(-5x+1) = - 2
8x - 10x + 2 = - 2
2x = 4
x = 2 ---- third equation
substitude third equation into first equation
y = - 5(2) + 1
y = - 9
6. y+2x=-1 ---- second equation
y-3x=-16
y = 3x - 16 ---- first equation
substitude first equation into second equation
3x - 16 + 2x = - 1
5x = 15
x = 3 --- third equation
substitude third equation into first equation
y + 2(3) = - 1
y = - 7
Answer: b
Step-by-step explanation:
