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2 years ago

The axis of symmetry for a function in the form f(x) = x2 + 4x - 5 is x = -2. What are the coordinates of the vertex of the

Mathematics

2 answers:

umka2103 [35]2 years ago

8 0

Answer:

(- 2, - 9 )

Step-by-step explanation:

The axis of symmetry passes through the vertex of the parabola.

Thus the x- coordinate of the vertex is x = - 2

To find y substitute x = - 2 into f(x)

f(- 2) = (- 2)² + 4(- 2) - 5 = 4 - 8 - 5 = - 9

Vertex = (- 2, - 9 )

Nostrana [21]2 years ago

6 0

(-2, -9) that’s My answer I put if this is wrong I’m so sorry

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4)<br> - 10x – 5x = 45<br> Solve the equation

CaHeK987 [17]

$\textsf{Hey there!}$

$\mathsf{-10x-5x=45}$

$\textsf{Combine your like terms: \mathsf{(-10x -5x)}}$

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$\mathsf{New\ equation: -15x=45}$

$\mathsf{\bf{DIVIDE}\ \mathsf{\ both\ sides\ by\ -15}}$

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$\mathsf{\bf{Cancel\ out:}}\mathsf{\ \dfrac{-15}{-15}\ because\ that\ gives\ you\ }$

$\mathsf{\bf{Keep:}\mathsf{\dfrac{45}{-15}\ because\ that\ solves\ for\ x}}$

$\mathsf{New\ equation: x = \dfrac{45}{-15}}\\\\\mathsf{x = 45\div-15\rightarrow \underline{\bf{-3}}}$

$\huge\text{Thus, x = -3}\checkmark$

$\boxed{\boxed{\mathsf{Thus,\ your\ answer\ is: \boxed{\boxed{\text{\huge{\bf{x = -3}}}}}}}}\checkmark$

$\textsf{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

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3 years ago

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3 years ago

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Answer:

Can u please properly explaine?

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1 year ago

Read 2 more answers