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3 years ago

What's the slope and the point on the line?

Mathematics

2 answers:

DiKsa [7]3 years ago

8 0

Isolate y first;

y+2=3(x-7)
y+2=3x-21
y=3x-21-2
y=3x-23

The slope here would the coefficient of x and the y intercept is the constant number.

Slope is 3, y-intercept is -23.

The solution could either be a or c.

To check, insert 7 as an x value and see the y value.

y=3(7)-23
y=-2

Therefore the point (7, -2) falls on the line. The correct solution is a.

Hope I helped :)

Slav-nsk [51]3 years ago

3 0

The slope is 3 and the points are (7,-2).
Hope this helps!!!!!!

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2 years ago

HELP ASAP : Find the largest value of n such that 5x^2+nx+48 can be factored as the product of two linear factors with integer c

Anna71 [15]

Answer:

$n=241$

Step-by-step explanation:

We are given

$5x^2+nx+48$

Let's assume it can be factored as

$5x^2+nx+48=(5x-s)(x-r)$

now, we can multiply right side

and then we can compare it

$5x^2+nx+48=5x^2-5rx-sx+rs$

$5x^2+nx+48=5x^2-(5r+s)x+rs$

now, we can compare coefficients

$rs=48$

$5r+s=-n$

$n=-(5r+s)$

now, we can find all possible factors of 48

and then we can assume possible prime factors of 48

$48=-+(1\times 48)$

$48=-+(2\times 24)$

$48=-+(3\times 16)$

$48=-+(4\times 12)$

$48=-+(6\times 8)$

Since, we have to find the largest value of n

So, we will get consider larger value of r because of 5r

and because n is negative of 5r+s

so, we will both n and r as negative

So, we can assume

r=-48 and s=-1

so, we get

$n=-(5\times -48-1)$

$n=241$

7 0

3 years ago

Use completing the square to solve the equation x^2 0 10x = 08.

wariber [46]

Ok so assuming the 0 means minus from typing problems

x^2-10x=-8

to completet the square
make sure the term in front of x^2 is 1
that is correct
then take 1/2 of the term in front of the x term and square it
-10/2=-5, (-5)^2=25
add that to both sides
x^2-10x+25=17

answer is the first equation

4 0

2 years ago