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3 years ago

I not very good with slope and y intercept form. any tips ?

Mathematics

1 answer:

jeyben [28]3 years ago

4 0

Step-by-step explanation:

To find the slope you use the slope formula which is y2-y2/x2-x1

And to find the y intercept you use y=mx +b. Yous substitute the slope as m and you substitute a point from the line to find b. Which is the y intercept

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So my teacher sucks at explaining this so I need someone's help to solve it.

galben [10]

So x is a variable which is just <span>character representing a number. We want to find x. To do this we want to get X by itself on one side of the equation. In this case/ we just need to divide both side by -4. Whatever you do to one side, you must do to the other. This gives us X = -12. To check yourself just plug your answer back into the equation to see if its right. -4(-12) = 48. You have successfully solved for X.</span>

8 0

3 years ago

Use the following quadratic to answer the questions below: x2 + 18x + 8 = 0

yanalaym [24]

Answer:

that is invalid question

Step-by-step explanation:

4 0

3 years ago

100 POINTS! I REALLY NEED TO GET THIS CORRECT! Factor the quadratic trinomial.

Assoli18 [71]

The factors of the equation $x^2-3x-18$ are $(x-6)(x+3)$

Step-by-step explanation:

We need to factor the quadratic trinomial. $x^2-3x-18$

We will do factorization by braking the middle term such that adding those number we get middle term (-3x) and multiplying those numbers we get (-18x^2)

Solving:

$x^2-3x-18\\=x^2-6x+3x-18\\=x(x-6)+3(x-6)\\=(x-6)(x+3)$

So, the factors of the equation $x^2-3x-18$ are $(x-6)(x+3)$

Keywords: Finding Factors of Quadratic Equation

Learn more about Finding Factors of Quadratic Equation at:

#learnwithBrainly

8 0

4 years ago

A person jogs 1/2 mile in 1\8 hour. What is the persons speed per hour

Over [174]

Answer:

4 miles per hour is the speed

6 0

4 years ago

Read 2 more answers

Please answer this for me

coldgirl [10]

In 1-4, to determine whether a sequence is either arithmetic or geometric, you need to look at differences of consecutive terms (arithmetic) and ratios of consecutive terms (geometric). If you can't find it, the sequence will fall under the "neither" category.

For example, the differences between consecutive terms in the first sequence are

$\left\{2-4,\dfrac12-2,\dfrac14-\dfrac12,\ldots\right\}=\left\{-2,-\dfrac32,-\dfrac14,\ldots\right\}$

If the sequence was arithmetic, the difference between consecutive terms would have been the same constant throughout this list. But that's not the case, so this sequence is not arithmetic.

The ratios between consecutive terms are

$\left\{\dfrac24,\dfrac{\frac12}2,\dfrac{\frac14}{\frac12},\ldots\right\}=\left\{\dfrac12,\dfrac14,\dfrac12,\ldots\right\}$

The sequence would have been geometric if the list contained the same value throughout, but it doesn't. So this sequence is neither arithmetic nor geometric.

Meanwhile, in the second sequence, the differences are

$\{-1-(-6),4-(-1),9-4,\ldots\}=\{5,5,5,\ldots\}$

so this sequence is arithmetic.

In 5-6, you know the sequences are arithmetic, so you know that they follow the recursive rule

$a_n=a_{n-1}+d$

For example, in the fifth sequence we know the first term is $a_1=4$ . The common difference between terms is $d=9-4=5$ . So using the rule above, we have the pattern