3 years ago

Y=2x+7 y=9x+8 Does that have a solutions

Mathematics

1 answer:

erastova [34]3 years ago

3 0

Answer:

one solution: (-1/7, 47/7)

Step-by-step explanation:

here's the picture, work also provided! ↑

You might be interested in

A line passes through (-9,-5) and (2,-4)

zlopas [31]

The point-slope form of a line:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (-9, -5) and (2, -4). Substitute:

$m=\dfrac{-4-(-5)}{2-(-9)}=\dfrac{1}{11}\\\\y-(-5)=\dfrac{1}{11}(x-(-9))\\\\\boxed{y+5=\dfrac{1}{11}(x+9)}\leftarrow\boxed{\text{point-slope form}}$

The standard form of a line:

$Ax+By=C$

$y+5=\dfrac{1}{11}(x+9)$ multiply both sides by 11

$11y+55=1(x+9)$

$11y+55=x+9$ subtract 9 from both sides

$11y+46=x$ subtract 11y from both sides

$46=x-11y$

$\boxed{x-11y=46}\leftarrow\boxed{\text{standard form}}$

5 0

3 years ago

find the vertex of y= 4x^2+5x+-6 please find the value of x and value of y and round to the nearest hundredth

Bingel [31]

Answer:

-768

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

HELPPP PLSSSS FOR EXTRA POINS AND BRAINLEST I NEED

Alik [6]

Answer:

Answer is C

Step-by-step explanation:

It is not in a stright line or in a line at all!

Hope this helped!!!

6 0

3 years ago

Read 2 more answers

Determine the perimeter of a rectangle feet

Helen [10]

Step-by-step explanation:

2l+2w=perimeter

L is Length

W width

5 0

3 years ago

Read 2 more answers

3. Simplify 315-217+45 - 28 . (1 point) 2/12 O 212 O 615-417 6/10 -4114

Ivanshal [37]

The answer might be (45/29).

5 0

3 years ago