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3 years ago

Which answer is an equation in point-slope form for the given point and slope?

Mathematics

2 answers:

Naddika [18.5K]3 years ago

7 0

Answer:

B $(y-9)=5(x-1)$

Step-by-step explanation:

Formula of straight line in Point slope form

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

Here

$m=5 \ and \ (x_1, y_1)=(1, 9)$

therefore equation of line having slope 5 and passing through point )1, 9) is given as

$(y-9)=5(x-1)$

Doss [256]3 years ago

5 0

Answer:

Francine has just set up her Christmas tree. 40% of her ornaments are red. If she has 30 ornaments, then how many are red?

Step-by-step explanation:

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The county fair charges $1.25 per ticket for the rides. Jermaine bought 25 tickets for the rides and spent a total of $43.75 at

Aleksandr-060686 [28]

A.)y=1.25x+12.5

B.)ridecost+admission=total

if x=number of tickets and y is total and cost per ride is 1.25,

1.25x+admission=y

when we solve

when x=25, y=43.75

Hope This Helps!!!

-Austint1414

5 0

3 years ago

Read 2 more answers

Find an equation for the line below. Thanks !

daser333 [38]

Answer:

$\huge\boxed{y=\frac{1}{4}x + \frac{13}{4}}$

Step-by-step explanation:

In order to find the equation to this line, we need to note that we see two points on this graph. Using these two points, we can use them to find the slope of the graph and use one to find the y-intercept.

We know that the slope of a line is defined by $\frac{\Delta y}{\Delta x}$ (change in y / change in x). Therefore, we can use our two points that we know - (-5, 2) and (3, 4) to find the slope.

The change in y is $4 - 2 = 2$ , and the change in x is $3 - (-5) = 3+5= 8$ . Therefore, our slope is $\frac{2}{8} = \frac{1}{4}$ .

Now that we know our slope, our equation in slope-intercept form looks something like this.

$y = \frac{1}{4}x + b$

However, we still have b to solve for. We can solve for this by substituting a point we already know into the equation. Let's substitute (3, 4) inside.

$4 = \frac{1}{4} \cdot 3+b$
$4 = \frac{3}{4} + b$
$b = \frac{16}{4}- \frac{3}{4}$
$b = \frac{13}{4}$

So now we know that the y-intercept is $\frac{13}{4}$ . Plugging that into our equation finishes it off, leaving our final equation to be $y = \frac{1}{4}x + \frac{13}{4}$ .

Hope this helped!

4 0

3 years ago

Read 2 more answers

54 is 75% of

VLD [36.1K]

54 is 75% of x.

75% of x:
$75 \% \ of \ x=75\% \times x= \frac{75}{100}x=\frac{3}{4}x$

75% of x is (3/4)x and 75% of x is 54. Set (3/4)x equal to 54:
$\frac{3}{4}x=54 \\
x=54 \times \frac{4}{3} \\
x=\frac{54}{3} \times 4 \\
x=18 \times 4 \\
x=72$

54 is 75% of 72.

3 0

3 years ago

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sineoko [7]

please write in proper English to answer

8 0

3 years ago

What is the equation, in point-slope form, of the line that is perpendicular to the given line and passes through the point (-4,

Eduardwww [97]

The slope of the given line is
.. (1 -(-3))/(4 -(-4)) = 4/8 = 1/2
Then the perpendicular line will have slope
.. m = -1/(1/2) = -2

The point-slope form of your line is
.. y -3 = -2(x +4) . . . . . . . . . . if you prefer y -y0 = m(x -x0)
.. y = -2(x +4) +3 . . . . . . . . . . if you prefer y = m(x -x0) +y0 as I do.

9 0

3 years ago