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Butoxors [25]
3 years ago
13

In point slope form: passes through (1, -3), slope = -1?​

Mathematics
1 answer:
sleet_krkn [62]3 years ago
5 0

Answer:

y + 3 = -1(x-1)

Step-by-step explanation:

sub (1, -3) and slope = -1:

y - (-3) = -1(x - 1)

Topic: Coordinate Geometry

If you would like to venture further, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

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Read image for instructions
Oliga [24]

The last part answers the first part for you, just look at the y-values.

In other words:

<em>A'</em><em> </em>(-8, 2)

<em>B'</em> (-4, 3)

<em>C'</em> (-2, 8)

<em>D'</em> (-10, 6)

Explanation:

When you reflect any point over the x-axis, the y-value of the ordered pair is going to change.

This makes sense especially considering that the x-axis is horizontal, so the only way you could cross is to move up or down. If you were to move left or right, you'd only be able to cross the y-axis, since it's vertical.

Now for the last part, as I mentioned above, if you are reflecting across the y-axis, the x-values of the ordered pair is going to change.

<em>A'</em><em>'</em> (8, 2)

<em>B'</em><em>'</em> (4, 3)

<em>C'</em><em>'</em> (2, 8)

<em>D'</em><em>'</em> (10, 6)

Take note that the only thing that changes for the respective value is its sign, while the number itself stays the same.

3 0
3 years ago
Find the value of x 3x+1=x+9​
Ann [662]

Answer:

X = 4

Step-by-step explanation:

you just gotta subtract 1 from both sides in order to find what x equals. and from there you subtract x from both sides, any letter has an invisible 1 in front, so then you divide 2 from both sides. and you get x = 4

5 0
3 years ago
A toy store owner estimates that by charging x dollars each for a certain toy, he can sell 40−x toys each week. The quadratic eq
djyliett [7]

Answer:x=20

Step-by-step explanation:

Given

selling Price of Toy is x dollars

he can sell 40-x toys each week

Thus Revenue Generated from selling 40-x toys at x dollar can be given by

R=-x^2+40x

To get maximum Revenue differentiate R with respect to x  and equate it to 0

therefore \frac{\mathrm{d} R}{\mathrm{d} x}=-2x+40

-2x+40=0

x=20

thus for maximum Revenue owner sells 20 toys each week

Max Revenue R=-(20)^2+40\times 20=-400+800=$ 400

3 0
3 years ago
Jack is going to the fair. The fair charges $10 to enter and $0.25 per ticket. How much will be spent by Jack? t = tickets 0.25
Alborosie
Hello

there is a base charge of 10 (+10)
and each ticket is multiplied by 0.25 (0.25t)

10+0.25t

hope this helped :)

4 0
3 years ago
Read 2 more answers
Ax + by = c<br> To solve each literal equation for the given variable
vodka [1.7K]

Answer:

Step-by-step explanation:

For a:

ax = c - by

a = (c - by)/x

For x:

ax = c - by

x = (c - by)/a

For b:

by = c - ax

b = (c - ax)/y

For y:

by = c - ax

y = (c - ax)/b

8 0
4 years ago
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