Answer:
See below.
Step-by-step explanation:
Equation of parabola:
y = some expression in x^2
To translate the parabola vertically, substitute y with y - k.
The translation is k units vertically. If k is positive, the translation is up. If k is negative the translation is down.
Example 1:
original parabola: y = x^2 - 2x + 5
To translate it 3 units up, we need k = 3.
Substitute y with y - 5 to get
y - 3 = x^2 - 2x + 5
y = x^2 - 2x + 8 is the equation of the parabola translated 3 units up.
Example 2:
original parabola: y = 2x^2 + 4x - 6
To translate it 5 units down, we need k = -5.
Substitute y with y - (-5), or y = 5 to get
y + 5 = 2x^2 + 4x - 6
y = 2x^2 + 4x - 11
y = 2x^2 + 4x - 11 is the equation of the parabola translated 5 units down.
Answer:
10%
Step-by-step explanation:
Decrease=150- 135=15
Percentage of decrease= 15÷150×100
=10%
Answer:
10 x² - 4x
Step-by-step explanation:
Area trapezoid = 1/2 ( (b1+b1)h)
1/2( 2x * 10x - 4)
1/2(20x² - 8x)
10x² - 4x
If my answer is incorrect, pls correct me!
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-Chetan K
(a) y = -7/5x + 17.8
(b) it decreased by 7/5 per day.
Hope this helps!!! :)
17/24
Take 1/6 multiply it by 4 and get 4/24
Take 7/8 multiply it by 3 and get 21/24
Subtract 4 from 21
Answer is 17/24