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3 years ago

A line passes through the points (2, -4) and (4, 2). What is the equation of this line in slope-intercept form?

Mathematics

1 answer:

Aneli [31]3 years ago

3 0

Answer:

Step-by-step explanation:

Slope = y2-y1/x2-x1

(2,-4) = (x1,y1)

(4,2) = (x2,y2)

Slope = (2+4)/(4-2)

= 6/2

= 3

Y=mx+b [Plugging (4,2) into this]

2 = 3×4 +b

2 = 12 + b

b = -10

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In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, David has s

jasenka [17]

Answer:

The answer in interval notation is ( 73 , 100 )

Step-by-step explanation:

If we call x and y the lower and upper values for David to get an average of 80 and 89 respectively, we can calculate these two values solving a pair of equations:

(81 + 92 + 74 + x ) / 4 = 80 ⇒ (247 + x )/4 = 80

247 + x = 320 ⇒ x = 320 - 247

x = 73

And

(81 + 92 + 74 + y ) / 4 = 89 ⇒ ( 247 + y ) / 4 = 89

247 + y = 356

y = 356 - 247

y = 109

But tests are a 100-point test

Then the answer in interval notation is ( 73 , 100 )

4 0

3 years ago

2 Fifteen percent of a bag of chocolate

Minchanka [31]

Answer:0.25 or 25%

Step-by-step explanation:

8 0

2 years ago

Please help, anything would be very much appreciated

jasenka [17]

Answer:

answer is 5.50

Step-by-step explanation:

multiply 2.75 times two because 3 by 5 is half of 9 by 15

7 0

2 years ago

Read 2 more answers

10 times as much as blank hundred is 70 hundreds or blank thousands

netineya [11]

Answer:

10 times as much as 7 hundred is 70 hundreds or 7 thousands.

Step-by-step explanation:

The question given is:

10 times as much as _____ hundreds is 70 hundreds or _____ thousands.

Dividing the question into two fractions, we have:

10 times what is 70 hundreds?

What is 70 hundreds in thousands?

10 x 7 hundred = 10 x 700 = 70 hundreds

Recall that 70 hundreds = 70 00

70 hundreds = 70 00 = 7 thousands = 7 000

Therefore, the question can be written as:

10 times as much as 7 hundreds is 70 hundreds or 7 thousands.

7 0

3 years ago

The vertices of a triangle are A(2,4),B(-1,-3),and C(3,6). Find the new vertices. Use the rule (x,y) >>>(x-3,y+5)to tra

Mama L [17]

Answer:

A(-1,9), B(-4,2) and C(0,11)

Step-by-step explanation:

The vertices of a triangle are A(2,4),B(-1,-3),and C(3,6).

To translate, we use the rule (x,y) >>>(x-3,y+5)

For Vertex A(2,4),

The new vertex is (2-3, 4+5)=(-1,9)

For Vertex B(-1,-3)

The new vertex is (-1-3,-3+5)=(-4,2)

For Vertex C(3,6)

The new vertex is (3-3,6+5)=(0,11)

After translation of Vertex A, B and C by the given rule, the new points are A(-1,9), B(-4,2) and C(0,11)

8 0

2 years ago