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soldier1979 [14.2K]
3 years ago
12

What is the y-intercept of the quadratic function f(x) = (x – 8)(x + 3)? (8,0) (0,3) (0,–24) (–5,0)

Mathematics
2 answers:
adoni [48]3 years ago
8 0
Y-intercept: (0, -24)
Sveta_85 [38]3 years ago
7 0

Answer:

The y-intercept of f(x) is -24.

(0,-24)  C is correct.

Step-by-step explanation:

Given: f(x)=(x-8)(x+3)

We need to find the value of y-intercept.

For y-intercept, put x=0 into f(x) and solve for y because it lie on y-axis.

Put x=0 into f(x)

y-intercept=f(0)

f(0)=(0-8)(0+3)

f(0)=-24

y-intercept: (0,-24)

Hence, The y-intercept of f(x) is -24.

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17+36=z-37 what is z
sp2606 [1]

Answer:

The correct answer is 90

Step-by-step explanation:

17 + 36= z- 37   ADD 17 AND 36

53= z-37        BRING 37 OVER TO 53 AND ADD

z = 90           FINAL ANSWER

8 0
2 years ago
Find f ∘ g f∘g and g ∘ f g∘f. f ( x ) = x 2 / 3 , g ( x ) = x 9 f(x)=x2/3, g(x)=x9 (a) f ∘ g f∘g (b) g ∘ f g∘f Find the domain o
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8 0
3 years ago
If the value of third order determinant is 11. Then what is the value of the determinant formed by its cofactors.
nordsb [41]

Answer:

146.41

Step-by-step explanation:

third order determinant = determinant of 3×3 matrix A

given ∣A∣=11

det (cofactor matrix of A) =set (transpare of cofactor amtrix of A) (transpare does not change the det)

=det(adjacent of A)

{det (cofactor matrix of A)}  ^2  = {det (adjacent of A)} ^2

 

(Using for an n×n det (cofactor matrix of A)=det (A)^n−1 )

we get

det (cofactor matrix of A)^2  = {det(A)  ^3−1 }^2

 

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5 0
3 years ago
Which inverse operation should be performed first?: m = 7 = 32.
Mumz [18]
The answer is multiplication
7 0
3 years ago
Which values of x make this equation true?
Evgesh-ka [11]

Answer:

{x}^{2}  + x = 12 \\  {x}^{2}  + x - 12 = 0 \\  {x }^{2}  + 4x - 3x - 12 = 0 \\ x(x + 4) - 3(x + 4) = 0 \\ (x + 4)(x - 3) = 0 \\ either \:  \:  \: or \:  \\ x =  - 4 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x = 3

the answer is -4 and 3

3 0
2 years ago
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