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3 years ago

Which of the following is the equation of a line perpendicular to the line Y=-1/3x+1, passing through the point (2,7)?

1 answer:

5 0

Y= 3X + 1. Perpendicular means you would change the slope by flipping it and changing the sign. So the slope then becomes 3. Then you use your points to find the y-intercept by filling in the variables. 7=3(2) + B. 7=6 + B. Then subtract 6 from both sides. B=1. Then you just put your problem back into slope intercept form with your new slope and y-intercept. Y=3x + 1.

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Jana earns $25 per week for mowing the lawn and deposits the money into her savings account. The amount of money in Jana’s accou

Ivahew [28]

Slope-intercept form: y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

x = the number of weeks she mows the lawn

y = the amount of money in Jana's savings account

y = 25x + 125

[amount of money in savings account(y) = $125 plus $25 per week(x)]

y-intercept = 125

So if x = 0 weeks and y = $125 in the savings account, $125 was already/initially in the savings account before she started earning and depositing $25 per week. Your answer is C

3 0

2 years ago

There are 18 cupcakes how many 3/4 size servings can u make

ehidna [41]

You can makeabout 17

5 0

3 years ago

Read 2 more answers

How do you get this to its Standard Form?<br>And is it linear?

Alchen [17]

let's bear in mind that

standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

so, let's do away with the denominators by multiplying both sides by the LCD of all fractions, in this case 6.

$\bf \cfrac{x}{2}=\cfrac{y+3}{6}\implies\stackrel{\textit{multiplying by }\stackrel{LCD}{6}}{6\left( \cfrac{x}{2} \right)=6\left( \cfrac{y+3}{6} \right)}\implies 3x=y+3\implies \stackrel{\textit{standard form}}{3x-y=3}$

4 0

3 years ago

Read 2 more answers

Find the value of y (view picture below)

bekas [8.4K]

Answer:

Step-by-step explanation:

Apply the formula A^2 + B^2 = C^2

13^2 = 169

12^2 = 144

169 - 144 = 25

Square root of 25 is 5

7 0

2 years ago

Please help on #17 thank you!!

Ivahew [28]

Answer:

its B

Step-by-step explanation:

you do 40 over 100 then x over 225

40 x

----- X ------ then you cross multiply then divied 40x225/100=90

100 225

8 0

3 years ago