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3 years ago

Find an equation, in slope-intercept form, that passes through the point (−4,3) with a slope of −3.

Mathematics

1 answer:

lisov135 [29]3 years ago

8 0

Answer:

y = -3x - 9

Step-by-step explanation:

Equation of line in point slope form is given as:

$y - y_1 = m(x-x_1) \\y - 3= - 3\{x - (-4)\}\\y - 3 = - 3(x + 4)\\y =- 3x - 12 +3\\y = - 3x - 9\\ is \: the \: required \: equation \\$

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John Paulo bought 10 plastic discs. Each disc weighs 0.9 ounces. How much do the 10 plastic discs weigh in all?

Yuki888 [10]

Answer:

Step-by-step explanation:

.9*10=10

it's basically simple multiplication with a decimal

4 0

3 years ago

write a linear equation that intersects y=x^2 at two points. Then write a second linear equation that intersects y=x^2 at just o

Liula [17]

We know that $y = x^2$ is a parabola, concave up, with vertex in the origin $(0,0)$

So, we may use three horizontal lines for our purpose: any horizontal line above the x axis will intersect the parabola twice. The x axis itself intersects the parabola once on the vertex, while any horizontal line below the x axis won't intercept the parabola.

Here's the examples:

The horizontal line $y = 4$ intercepts the parabola twice: the system $y = x^2,\ y = 4$ is solved by $x^2=4 \implies x = \pm 2$
The horizontal line $y=0$ intercepts the parabola only once: the system is $y=x^2,\ y=0$ which yields $x^2=0\implies x=0$ which is a repeated solution
The horizontal line $y=-5$ intercepts the parabola only once: the system is $y=x^2,\ y=-5$ which yields $x^2=-5$ which is impossible, because a squared number can't be negative.

5 0

3 years ago

Which of the following shows no correlation between the independent and dependent variables?

jeka94

D doesn’t show a positive or negative correlation. D is the best answer choice.

3 0

3 years ago

Read 2 more answers

sally can paint a room in 7 hours while it taks steve 9hours to finsh the same room. how ling will it take them to paint if they

Nata [24]

How much part can sally paint in an hour ?
a ÷ 7 = a/7

And what about Steve ?
a ÷ 9 = a/9

Where, a is the total area of the room.

So, let the time taken by both of them to paint the room together be 't'

So,
t(a/7 + a/9) = a
t(9a/63 + 7a/63) = a
t(16a/63) = a
t = 63/16 ≈ 4 hr

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3 years ago

Read 2 more answers

Imagine that you have a very large barrel that contains tens of thousands of M&M's. According to the official M&M websit

Finger [1]

Answer:

(A)20%, 20%, 20%, 20%, 20%

Step-by-step explanation:

We are told that 20% of the M&M's produced by the Mars Corporation are Orange in color. If 5 students take a random sample of 50 M&M's, the most plausible percentage of orange candies that will be obtained is:

20%, 20%, 20%, 20%, 20%

This is as a result of the fact that in research experiments, a sample is a representation of the whole. Any result which holds for a random sample should hold for the total population and vice versa.

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3 years ago