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Mila [183]
3 years ago
7

If f(x) = x2 - 3x, then find f(a + h) - f(a)

Mathematics
1 answer:
klemol [59]3 years ago
3 0

Answer:

2h-3a

Step-by-step explanation:

First Find f(a+h)

f(a+h) =-a-h

Then find f(a)

f(a) =2a-3h

Then f(a+h) - f(a)= - a-h-(2a-3h)=2h-3a

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1/18 or 55.5%

Step-by-step explanation:

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Select the correct answer from each drop-down menu.
liubo4ka [24]

Step-by-step explanation:

function f was reflected over the x-axis and translated 2 units left

7 0
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How do u express one-half of the difference of a number cubed and one?
Ksivusya [100]
The expression ' one-half difference of a number cubed and one'. is written as \frac{1}{2}(x^3-1)
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3 years ago
Example 5
Svetllana [295]

Answer:

1/2*6(12+x)=12*x

1/2*(72+6)=12x

36+3x=12x

36=9x

4=x

Step-by-step explanation:

Check that x=4

1/2*6(4+12)=12*4

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So x=4 is the correct answer

3 0
3 years ago
Which points lie on the line whose equation is 8x - 2y + 7 = -9? Select all that apply.
Anestetic [448]

Answer:

A.(-2, 0)

C. (-1.4)

Step-by-step explanation:

we know that

If a point lie on the line, then the point must satisfy the equation of the line (makes the equation true)

we have

8x-2y+7=-9

subtract 7 both sides

8x-2y=-9-7

8x-2y=-16

divide by 2 both sides

4x-y=-8

Substitute the value of x and the value of y of each point in the linear equation and analyze the result

<u><em>Verify each point</em></u>

case A) we have

(-2, 0)

For x=-2, y=0

substitute

4(-2)-(0)=-8

-8=-8 ---> is true

so

the point lie on the line

case B) we have

(1, 3)

For x=1, y=3

substitute

4(1)-(3)=-8

1=-8 ---> is not true

so

the point not lie on the line

case C) we have

(-1, 4)

For x=-1, y=4

substitute

4(-1)-(4)=-8

-8=-8 ---> is true

so

the point lie on the line

case D) we have

(1, -4)

For x=1, y=-4

substitute

4(1)-(-4)=-8

8=-8 ---> is not true

so

the point not lie on the line

case E) we have

(0, -1)

For x=0, y=-1

substitute

4(0)-(-1)=-8

1=-8 ---> is not true

so

the point not lie on the line

7 0
3 years ago
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