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3 years ago

Y= -2x-9 in standard form

Mathematics

1 answer:

Andrew [12]3 years ago

3 0

standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

2x + y = -9.

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Which quadratic function has Vertex (-1,4) and passes through (4,19) <br> HELP

hichkok12 [17]

Answer:

$f(x)=\frac{3}{5}(x+1)^2+4$

Step-by-step explanation:

The equation of a quadratic function in vertex form is given by:

$f(x)=a(x-h)^2+k$

Where (h,k) is the vertex.

It was given in the question that the vertex of the parabola is (-1,4).

When we substitute the vertex into the formula we get:

$f(x)=a(x+1)^2+4$

The parabola also passes through (4,19) hence it must satisfy its equation.

$19=a(4+1)^2+4$

$19-4=a(5)^2$

$15=25a$

We divide both sides by 25 to get:

$a=\frac{15}{25}= \frac{3}{5}$

Hence the quadratic function is:

$f(x)=\frac{3}{5}(x+1)^2+4$

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3 years ago

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irina [24]

Answer:

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Step-by-step explanation:

If angle 1 is 135 degrees, how many degrees is angle 3? Q. What angle pair is pictured? Q. Find the measure of the indicated angle. (remember that the sum of interior angles is equal to 180 degrees) Q. Find the measure of each angle indicated. Q. If all three angles are exactly the same measure, how big is each angle? Q. Find the missing angle.

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2 years ago

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vladimir1956 [14]

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3 years ago

Read 2 more answers

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andrew-mc [135]

Answer:

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