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Svetlanka [38]
2 years ago
10

What is the equation in point slope form of the line that passes through the point ( 2 , -4 ) and has a slope of 4?

Mathematics
2 answers:
lana66690 [7]2 years ago
3 0

Answer:

y+4=4(x-2)

Step-by-step explanation:

point slope form is y-y_{1} =m(x-x_{1} ), where m=slope

Plug it in

y-(-4) = 4(x-2)

y+4=4(x-2)

erica [24]2 years ago
3 0
Y+4=4(x-2).

Point slope form is y-y1=m(x-x1)

We can insert the equation by putting our slope (4) as m. Our y1 (-4) counters the subtraction sign, so that side of the equation will be y+4. Our x1 is positive, so it can be easily inserted into the formula (x-2).

Basically; insert the terms into the point-slope formula :)!

Hope this helped
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Which function has a vertex on the y-axis? f(x) = (x – 2)2 f(x) = x(x 2) f(x) = (x – 2)(x 2) f(x) = (x 1)(x – 2)
makvit [3.9K]

The function that has a vertex on the y-axis is f(x) = (x - 2)(x + 2)

<h3>How to determine the function?</h3>

For a function to have its vertex on the y-axis, then the coordinate of the vertex must be:

(h,k) = (0,y)

A quadratic function is represented as:

f(x) = (x - h)^2 + k

So, we have:

f(x) = (x - 0)^2 + k

Evaluate

f(x) = x^2 + k

From the list of options, we have:

f(x) = (x - 2)(x + 2)

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f(x) = x^2 - 4

Hence, the function that has a vertex on the y-axis is f(x) = (x - 2)(x + 2)

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8 0
2 years ago
Find the product. Your answer must be in simplest form.<br> 7/8 of 56
Leviafan [203]

Answer:

You probably know that the number above the fraction line is called the numerator and the number below it is called the denominator. To work out the fraction of any number, we first need to convert that whole number into a fraction as well.

Here's a little tip for you. Any number can be converted to fraction if you use 1 as the denominator:

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So now that we've converted 56 into a fraction, to work out the answer, we put the fraction 7/8 side by side with our new fraction, 56/1 so that we can multiply those two fractions.

That's right, all you need to do is convert the whole number to a fraction and then multiply the numerators and denominators. Let's take a look:

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In this case, our new fraction can actually be simplified down further. To do that, we need to find the greatest common factor of both numbers.

You can use our handy GCF calculator to work this out yourself if you want to. We already did that, and the GCF of 392 and 8 is 8.

We can now divide both the new numerator and the denominator by 8 to simplify this fraction down to its lowest terms.

392/8 = 49

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When we put that together, we can see that our complete answer is:

49

1

The complete and simplified answer to the question what is 7/8 of 56 is:

49

Hopefully this tutorial has helped you to understand how to find the fraction of any whole number. You can now go give it a go with more numbers to practice your newfound fraction skills.

Step-by-step explanation:

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Don’t get this at all??
DENIUS [597]
Are you sure your in high school, also it's answer #3.
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