All categories

3 years ago

Solve the system of equations. y=6x+5 y=8x-7 what does x and y equal?

Mathematics

1 answer:

My name is Ann [436]3 years ago

7 0

8x-7 = 6x+ 5
2x = 12
X = 6, plug into equation
Y= 6(6) + 5
Y = 41

You might be interested in

Use the parabola tool to graph the quadratic function f(x)=−12x2+7. Graph the parabola by first plotting its vertex and then plo

Fudgin [204]

First we find the vertex of parabola $f(x)=-12 x^{2} +7$

The vertex of parabola is $( \frac{-b}{2a},f( \frac{-b}{2a}))$
Here,
b = coefficient of x term
a = coefficient of x² term

For given parabola, b = 0 , a = -12

So,
$\frac{-b}{2a}= \frac{0}{-24} =0$

And,

$f( \frac{-b}{2a} )=f(0) = -12(0)+7=7$

Thus the vertex of parabola is (0, 7)

To find another point on parabola, substitute x by 1.

$f(1)=-12( 1^{2}) +7=-12+7=-5$

So the second point on parabola is (1,-5)

The plot of parabola is shown in image below:

5 0

3 years ago

Read 2 more answers

ASAP! find the inverse of the function y=2x^2+2

jeka57 [31]

Answer:

$\displaystyle y=\sqrt{\frac{1}{2}x -1}$

Step-by-step explanation:

We want to find the inverse of the function:

$y=2x^2+2$

To find the inverse of a function, we will flip the variables and solve for <em>y</em>. So:

$x=2y^2+2$

Solve for <em>y</em>. Subtract two from both sides:

$x-2=2y^2$

Divide both sides by two:

$\displaystyle y^2=\frac{1}{2}x-1$

And take the principal square root of both sides. Therefore:

$\displaystyle y=\sqrt{\frac{1}{2}x -1}$

3 0

3 years ago

You are at the edge of a cliff

gavmur [86]

Answer:

tell the teacher u ar at home

7 0

2 years ago

Each one of the rectangles that make up the three dimensional figure is called a ___.

vovangra [49]

Answer:

Cuboid

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

When the data have the properties of ordinal data and the interval between observations is expressed in terms of a fixed unit of

seropon [69]

Answer: Interval

Step-by-step explanation:

When there is a fixed unit of measure that means arithmetic operations like addition and subtraction can be done on it. So it is interval scale of measurement.

8 0

3 years ago

Solve the system of equations. y=6x+5 y=8x-7 what does x and y equal?​

Solve the system of equations. y=6x+5 y=8x-7 what does x and y equal?