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nataly862011 [7]
3 years ago
13

Write the point-slope equation of the line that passes through (3, -1) and a slope of 2.

Mathematics
2 answers:
fredd [130]3 years ago
5 0

Answer:

\large\boxed{y+1=2(x-3)}

Step-by-step explanation:

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

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

We have the slope m = 2 and the point (3, -1). Substitute:

y-(-1)=2(x-3)\\\\y+1=2(x-3)

goblinko [34]3 years ago
4 0

Answer:

y=2x+(-7)

Step-by-step explanation:

y=2x+c

solve for c

-1=2(3)+c

-1=6+c

-6-1=c

c=-7

<u>y=2x+(-7)</u>

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Answer:

  23)  35.77 in²

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Step-by-step explanation:

Use the appropriate area formula with the given information.

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  A = 1/2bh . . . . . base b, height h

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The <em>height</em> in each figure is <em>measured perpendicular to the base</em>. This tells you that the length 10.6 cm of the diagonal side of the triangle is not relevant to finding the area.

6 0
3 years ago
Read 2 more answers
which pair of ratios is equivalent 8:32 and 16:64 or 52:56 and 17:19 or 34:40 and 16:20 or 6:8 and 16:12 help immediately
choli [55]
As it a lowest one so you will have to double it It is 16:64
6 0
3 years ago
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7 0
4 years ago
Janelle and her best friend Carmen go shopping. the function p(t) = 5^4-3x^3 +2^2+24 represents how much money each girl spent b
emmasim [6.3K]
<h2>Hello!</h2>

The answer is:

They spent $176 together.

<h2>Why?</h2>

We are given an expression which represents the money spent for each girl, it's a function of time and it will show how much they can spend in terms of hours.

Assuming that you have committed a mistake writing the equation, otherwise, the given options would not fit, the expression is:

p(t)=5x^{4}-3x^{3}+2x^{2}+24

Now, from the statement we know that the function represents how much money each girl spent, so, if we need to calculate how much money they will spend together, we need to multiply the expression by 2, so we have:

p(t)=2(5x^{4}-3x^{3}+2x^{2}+24)

Then, calculating the spent money for 2 hours, we need to substitute the variable "x" with 2.

Calculating we have:

p(2)=2(5*(2)^{4}-3*(2)^{3}+2*(2)^{2}+24)=2(5*16-3*8+2*4+24)

p(2)=2(5*16-3*8+2*4+24)=2(80-24+8+24)=2*88=176

Hence, we have that they spent $176 together.

Have a nice day!

3 0
3 years ago
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