All categories

2 years ago

A line has a slope of 2 and contains the points 1,3 and 2,y the value of y is

Mathematics

1 answer:

goldfiish [28.3K]2 years ago

7 0

Answer:

The value of y is $5$

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$A(1,3)\ B(2,y)$

Substitute the values

$2=\frac{y-3}{2-1}$

$2=y-3$

$y=2+3=5$

You might be interested in

The volume of a cone is 50 pi cm cubed. What is the radius of the cone. <br> Height=6cm

Viefleur [7K]

Answer:

i am really not sure because i worked it out but i needed to see how they said it .

Step-by-step explanation:

5 0

2 years ago

Heyyy!! Can someone please help me out?

exis [7]

Answer: yellow box

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Plot the image of D under a dilation about the origin (0,0) with a scale factor of 2

ElenaW [278]

(-6,-4)

If you dilate a point, (c,d) about (a,b) by a scale factor by k. You'll going to subtract each coordinates where the point will be dilated about (a,b) from the point (c,d) and then multiply them by k. This would be the formula if you want: (k(c -a), k(b -d))

Let's say F is the dilation of D about the origin or (0,0) then the x coordinate of F would be

$x = 2( - 3 - 0) \\ x = 2( - 3) \\ x = - 6$

This would be the y coordinate of F:

$y = 2( - 2 - 0) \\ y = 2( - 2) \\ y = - 4$

Thus the coordinates of F is (-6,-4)

4 0

3 years ago

Write an equation in point slope and slope intercept form of a line that passes through the given point and has the given slope

Evgesh-ka [11]

Answer:

Point-Slope: $y+4=-\frac{1}{2}(x+3)$

Slope-Intercept: $y=-\frac{1}{2}x-\frac{11}{2}$

Step-by-step explanation:

The point-slope formula is $y-y_{1}=m(x-x_{1} )$ . The slope-intercept formula is $y=mx+b$ . Since we are given the point and slope, we can directly plug it into the point-slope formula.