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3 years ago

12

Is 10=5x-6y written in standard form?

1 answer:

Lilit [14]3 years ago

7 0

No, the standard form for a straight line is in the form:

ax + by + c = 0

Since the 10 is on the LHS, you'd need to move it to the RHS to fit the straight line form and then moving everything to the LHS.

0 = 5x - 6y - 10
5x - 6y - 10 = 0 is the standard form.

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pantera1 [17]

Answer:

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Step-by-step explanation:

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4 years ago

Solve for x <br> 8x+6=10 please help me ASAP

Alla [95]

Answer:

0.5

Step-by-step explanation:

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3 years ago

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3 years ago

Graph a parabola whose intercepts are x=-3 and x=5 and whose minimum value is y =-4

blagie [28]

Answer:

$y = 4(x^{2} + 8x + 15) = 4x^{2} + 32x + 60$

Step-by-step explanation:

A parabola has the following format:

$y = f(x) = ax^{2} + bx + c$

If a is positive, it's minium value is:

$y_{M} = -\frac{\bigtriangleup}{4a}$

In which

$\bigtriangleup = b^{2} - 4ac$

Factoring:

$ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , in which $x_{1} and x_{2}$ are the intercepts.

In this question:

$x_{1} = -5, x_{2} = -3$

So

$a(x - x_{1})*(x - x_{2}) = a*(x - (-5))*(x - (-3)) = a*(x+5)*(x+3) = a*(x^{2} + 8x + 15)$

Suppose a = 1, we have:

$x^{2} + 8x + 15$

$\bigtriangleup = 8^{2} - 4*1*15 = 4$

The minimum value will be:

$y_{M} = -\frac{4}{4} = -1$

We want this minimum value to be -4, which is 4 times the current minimum value, so we need to multiply a by 4. Then

$a = 4$

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$y = 4(x^{2} + 8x + 15) = 4x^{2} + 32x + 60$

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3 years ago

Savannah bought 14 chicken wings for $30.80. How much would it cost for 23 wings?

raketka [301]

$50.80

Each wing cost $2.20 so if you multiply that by 23 you’ll get 50.80

8 0

2 years ago