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2 years ago

Need help Identify the domain of the function shown in the graph

Mathematics

1 answer:

Lady bird [3.3K]2 years ago

8 0

Answer:

Step-by-step explanation:

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Given the points J(4,-7) and L(-2,13), find the coordinates of point k on JL such that the ratio of jk is 1:4

Irina-Kira [14]

Answer:

The coordinates of point k are (-2.8,-3)

Step-by-step explanation:

we shall use the internal division formula to find the coordinates of point k

Mathematically, the formula is as follows;

Let’s call the coordinates of point k (x,y)

(x , y) = mx2 + nx1/(m + n) , my2 + ny1/(m + n)

From the question;

m = 1 , n = 4

x1 = 4, x2= -2

y1 = -7 , y2 = 13

Substituting these values in the equation, we have the following;

1(-2) + 4(4)/(1 + 4) , 1(13) + 4(-7)/(1+4)

(-2+16)/5, (13 -28)/5

= -14/5, -15/5

= (-2.8, -3)

3 0

2 years ago

Which of the sets of equations represent the two lines graphed?

Oksi-84 [34.3K]

Answer:

B) y = x + 2 and y = -x - 4

Step-by-step explanation:

Let the equation of a straight line with x-intercept 'a' and y-intercept 'b' be

$\frac{x}{a} + \frac{y}{b} = 1$

The line with positive slope has x-intercept a=-2 and y-intercept b=2.

Its equation is:

$\frac{x}{ - 2} + \frac{y}{2} = 1$

Multiply through by 2

$- x + y = 2$

Solve for y,

$\boxed {y = x + 2}$

For the line with a negative slope,

the x-intercept is a=-4 and the y-intercept is b=-4

Its equation is

$\frac{x}{ - 4} + \frac{y}{ - 4} = 1$

Multiply through by -4

$x + y = - 4$

Solve for y

$\boxed {y = - x - 4}$

4 0

2 years ago

Please help!<br><br> 2x-20°<br> x+5°<br> x=?

strojnjashka [21]

answer=

2 • (x - 10)

x + 5 is just x + 5

7 0

2 years ago

Find (f – g)(x) if f(x) = 2x – 3 and g(x) = 4x + 8.

Aleks04 [339]

f(x) - g(x) = 2x-3 -(4x+8)

= 2x-3 -4x-8

= -2x-11

4 0

3 years ago

Given the two points (0,4) and (2, 6), what would the numerator of the equation for slope be?

serious [3.7K]

6-4 because the equation for slope is m=y2-y1/x2-x1

6 0

2 years ago

Read 2 more answers