All categories

2 years ago

What is the slope of the line through (-1, -7) and (3,9)?

Mathematics

2 answers:

Makovka662 [10]2 years ago

5 0

Answer:

B (4)

Step-by-step explanation:

$\frac{9+7}{3+1}$ = $\frac{16}{4}$ = $\frac{4}{1}$ = 4

Tpy6a [65]2 years ago

5 0

Answer B

This is because you use the formula
Y2-y1
———-
X2-x1

So you would take Y2 which = 9 then subtract y1 which is -7 This equals 16

Then you take x2 which is 3 and subtract -1 which equals 4

Then you take 16/4 which equals 4

You might be interested in

Identify two angles that are marked

Natalka [10]

Answer:

Angles G and H are congruent.

Step-by-step explanation:

5 0

2 years ago

For what values of x is the inequality 2/3 + x/3 >1 true?

Travka [436]

Answer:

Step-by-step explanation:

$\frac{2}{3}$ + $\frac{x}{3}$ > 1 ( multiply through by 3 to clear the fractions )

2 + x > 3 ( subtract 2 from both sides )

x > 1

6 0

2 years ago

7. Brad Studied to the total of 24.4 hours over a period of four days. On average, how many hours did Brad study each day?

just olya [345]

24.4 x 4 = 97.6. He studied 97.6 hours.

8 0

3 years ago

Find the fifth term of the binomial expansion. (x2+y5) ^8

OlgaM077 [116]

Answer:

The fifth term of the binomial expansion

$T_{5} = 70 x^{8} y^{20}$

Step-by-step explanation:

Step:1

Given that the binomial expansion

( x² + y⁵ )⁸

we know that

$T_{r+1} = n_{C_{r} } a^{r} x^{n-r}$ ...(i)

Step:2

put r = 4

$T_{4+1} = 8_{c_{4} } (x^{2} )^{4} (y^{5} )^{8-4}$

$T_{5} = 70 x^{8} y^{20}$

Final answer:-

The fifth term of the binomial expansion

$T_{5} = 70 x^{8} y^{20}$

6 0

3 years ago

What is a correct equation for the line passing through the point (-2,1) and having slope m=1/2

frez [133]

Step-by-step explanation:

The point-slope form of an equation of a line:

$y-y_1=m(x-x_1)$

m - slope

We ahve the slope m = 1/2 and the point (-2, 1). Substitute:

$y-1=\dfrac{1}{2}(x-(-2))$

$y-1=\dfrac{1}{2}(x+2)$ - point-slope form

Covert to the slope-intercept form (y = mx + b):

$y-1=\dfrac{1}{2}(x+2)$ use the distributive property

$y-1=\dfrac{1}{2}x+1$ add 1 to both sides

$y=\dfrac{1}{2}x+2$ - slope-intercept form

Convert to the standard form (Ax + By = C):

$y=\dfrac{1}{2}x+2$ multiply both sides by 2

$2y=x+4$ subtract x from both sides

$-x+2y=4$ change the signs

$x-2y=-4$ - standard form

Convert to the general form (Ax+By+C=0):

$x-2y=-4$ add 4 to both sides

$x-2y+4=0$ - general form

5 0

3 years ago