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4 years ago

Solve for x and y.3x+y=136x+2y=26

1 answer:

5 0

Okay, this is a case of substitution:
3x + y = 13 correct?
-3x -3x
So: y = 13 - 3x
So: 3x +(13-3x)=13
and this is interchangeable, so x and y = all positive numbers
aka. 6x + 2(13-3x) = 26
it does not matter what numbers x and y are as long as they positive

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Find the x-intercepts for the parabola defined by the equation below. y = x2 + 9x + 14

faltersainse [42]

Answer:

x - intercepts are (-7,0) and (-2,0)

A is the correct option.

Step-by-step explanation:

We have been given the equation of the parabola $y=x^2+9x+14$

For x- intercept, y = 0

$0=x^2+9x+14$

We can split the middle term as 9x = 7x +2x

$x^2+7x+2x+14=0$

Now take GCF

$x(x+7)+2(x+7)=0$

Factored out the common term

$(x+7)(x+2)=0$

Apply the zero product property

$(x+7)=0,(x+2)=0$

Solve for x

$x=-7,-2$

Hence, x - intercepts are (-7,0) and (-2,0)

A is the correct option.

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Find the slope of the line that passes through the pair of points. F(–6, 8), P(–6, –5)

mariarad [96]

First, let's take a look at the formula to figure this out.

m = y2 - y1/x2 - x1

y2 would be -5, and y1 would be 8. -5 - 8 = -13.

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So, now we must divide -13 and -12, which results in 1 1/12.

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3 years ago