All categories

3 years ago

Given m = 2 and the point (-1, 7), which of the following is the point-slope form of the equation?

Mathematics

1 answer:

ANEK [815]3 years ago

3 0

The point-slope form:

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

We have the point (-1, 7) and the slope m = 2. Substitute:

$y-7=2(x-(-1))\\\\\boxed{y-7=2(x+1)}\to\boxed{b.}$

You might be interested in

Onah bicycled 12 miles in 4 hours. What is the unit rate

zmey [24]

Answer:

Miles per hour

Step-by-step explanation:

And if you want to know the speed it's 3 miles per hour.

6 0

3 years ago

A fair coin is tossed two times in succession. The set of equally likely outcomes in {HH,HT,TH, TT}. Find the probability of get

Kryger [21]

Answer:

1/4

Step-by-step explanation:

The answer is 1/4 because their is a total number of 4 outcomes (denominator) and there in only 1 chance (numerator) that you will not get tails.

7 0

3 years ago

Read 2 more answers

Please help, I've attached the picture and the answer choices.

pogonyaev

Slope = (-2 + 4)/(-2-2) = 2/-4 = -1/2

y = mx + b
so
b = y - mx
b = -2 -(-1/2)(-2)
b = -2 - 1
b = - 3

equation
y = -1/2x - 3

answer is B.
y = -1/2x - 3

6 0

3 years ago

What is a simplified eCarlotta thinks that 3y + 5y3 is the same as 8y4. Which statement shows that it is NOT the same?Xpression

stira [4]

Questions:

(a) What is a simplified expression for (x + y) – (x – y)?

(b) Carlotta thinks that $3y + 5y^3$ is the same as $8y^4$ . Which statement shows that it is NOT the same?

Answer:

$(x + y) - (x - y) =2y$

$3y + 5y^3 \ne 8y^4$

Step-by-step explanation:

Solving (a):

Given

$(x + y) - (x - y)$

Required

Simplify

$(x + y) - (x - y)$

Open brackets

$(x + y) - (x - y) = x + y - x + y$

Collect Like Terms

$(x + y) - (x - y) = x - x+ y + y$

$(x + y) - (x - y) = y + y$

$(x + y) - (x - y) =2y$

Solving (b):

Given

$3y + 5y^3$ and $8y^4$

Required

Which expression shows they are not the same

The expression that shows this is:

$3y + 5y^3 \ne 8y^4$

Take for instance; y=2

Substitute 2 for y in $3y + 5y^3 \ne 8y^4$

$3*2 + 5*2^3 \ne 8*2^4$

Evaluate all exponents

$9 + 5*8 \ne 8*16$

$9 + 40 \ne 128$

$49 \ne 128$

The above expression supports $3y + 5y^3 \ne 8y^4$

5 0

3 years ago

Calculate the value of x

Katena32 [7]

Answer:

22⁰

Step-by-step explanation:

By angle sum property :

x + 127 + 31 = 180⁰

x = 180 - 158

x = 22⁰

3 0

3 years ago

Read 2 more answers