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Alekssandra [29.7K]
2 years ago
6

Write a quadratic function in standard form that passes through (-8, 0), (-2, 0), and (-6,8).

Mathematics
1 answer:
Pavlova-9 [17]2 years ago
3 0

Answer:

-10xsquared-x+38

Step-by-step explanation:

so,

general eqn of quadratic equation is,

axsquared+bx+c=y

where,

x and y are exchanged by coordinates given in qn

1,64a-8b+c=0

2,4a-2b+c=0

or c=2b-4a

60a-6b=0

3,36a-6b+c=8

32a-4b=8

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UNO [17]

Answer:

all of the above

Step-by-step explanation:

5 0
3 years ago
48 qt equals how many gallons
Fynjy0 [20]

Answer:12 gallons

Step-by-step explanation:

48/4=12

8 0
3 years ago
Read 2 more answers
If a ball is thrown into the air with a velocity of 48 ft/s, its height in feet t seconds later is given by y = 48t − 16t2. Find
dimaraw [331]
The formula for average velocity between two times t1 and t2 of the position function f(x) is (f(t2)-f(t1)) / (t2-t1)
Plugging the values in for the first time period we get (f(2.5)-f(2)) / (2.5-2)
=> (f(2.5)-f(2)) / 0.5
f(2) will be the same for all 4 time periods and is
48(2)-16(2)^2 = 32
Now we plugin the other values
f(2.5) = 48(2.5)-16(2.5)^2 = 20
f(2.1) = 48(2.1)-16(2.1)^2 = 30.25
etc.
f(2.05) = 31.16
f(2.01) = 31.8384
Now plug these values into the formula
(20-32)/0.5 = -24
(30.25-32)/0.1 = -17.5
etc.
= -16.8
= -16.16
Final answer:
2.5s => -24 ft/s
2.1s => -17.5 ft/s
2.05 => -16.8 ft/s
2.01 => -16.16 ft/s
Hope I helped :)
6 0
3 years ago
Jim pays $75 per month for a cell phone plan plus $0.30 per minute beyond the first 1000 minutes. Write an equation for the cost
iragen [17]
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8 0
3 years ago
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How do i divide an equation over a negitive number? ​
mina [271]

Multiply both sides by negative four to get rid of the fraction

j+18=-32

subtract 18

j=-50

5 0
3 years ago
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