3 years ago

Solve the pair of simultaneous equations: 2x + y=7 x-2y+1

2 answers:

4 0

2x + y = 7 is an eqn of a straight liney = -2x +7with a slope of -2, and an intercept of 7 the table is for a straight line with a positive slope of 2found from e.g using the first two points in the table: (1 - -1)/(-3 - -4) = 2and an intercept of 7y = 2x + 7 or-2x + y = 7

makkiz [27]3 years ago

4 0

This is middle school right

You might be interested in

Which statement describes the behavior of the graph of the function shown at the vertical asymptotes?

erik [133]

As x approaches -7 from the right, y reaches negative infinity

4 0

3 years ago

Read 2 more answers

How long is a school bus

Sonja [21]

Answer:

45 ft

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The sales of digital cameras (in millions of units) in year t is given by the function

erma4kov [3.2K]

Digital Cameras Sold more

8 0

3 years ago

Read 2 more answers

Which of the following point is a solution to:x-4=-5

HACTEHA [7]

Answer:

-1

Step-by-step explanation:

If you add 4 to both sides you get

x-4+4=-5+4

the -4and+4 cancel out so you get

x=-1

4 0

2 years ago

Read 2 more answers

Find all integers $n$ for which $\frac{n^2+n+1}{n-1}$ is an integer.

Grace [21]

$\dfrac{n^2+n+1}{n-1}=\dfrac{(n-1)^2+3(n-1)+3}{n-1}=n-2+\dfrac3{n-1}$

The remainder term $\dfrac3{n-1}$ will never vanish, and will always be rational as long as the denominator is not 1, 3, or -3.

$n-1=1\implies n=2$
$n-1=3\implies n=4$
$n-1=-3\implies n=-2$

7 0

3 years ago