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3 years ago

The graph of y= -4x + 7 is

Mathematics

2 answers:

Rus_ich [418]3 years ago

8 0

Answer:

yeet

Step-by-step explanation:

evablogger [386]3 years ago

4 0

Answer:

See attachment.

Step-by-step explanation:

The equation of the function is

$y=-4x+7$

The slope of this function is

$m=-4$ and the y-intercept is $c=7$ .

This implies that the graph of the straight line passes through (0,7).

Let us also find the x-intercept by putting y=0 into the equation.

$0=-4x+7$

$-7=-4x$

Divide through by -4.

$\Rightarrow x=\frac{7}{4}$

Therefore the graph also passes through $(\frac{7}{4},0)$ .

We plot these two points and draw a straight line through them.

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Suppose j varies jointly with g and v, j=1 when g=6 and v=3. Find j when g=8 and v=11

Lady bird [3.3K]

j=4.88 when g=8 and v=11

Further explanation:

When the increase/decrease in one quantity cause increase/decrease in other quantity, it is called direct variation.

Variation is always accompanied by a variation constant.

<u>Given</u>

g and v vary directly with j

IT can be written as:

j∝gv

Putting the variation constant k

j = kgv

Putting g = 6 and v=3

$j = kgv\\1 = k * 6 * 3\\1 = 18k\\k = \frac{1}{18}$

So the value of k is 1/18 which makes the equation

$j = \frac{1}{18}gv\\ Putting\ g=8\ and\ v=11\\j = \frac{1}{18} * 8 * 11\\j = \frac{88}{18}\\ j =4.88$

So, j=4.88 when g=8 and v=11

Keywords: Variation, Direct Variation

Learn more about variation at:

#LearnwithBrainly

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3 years ago

1. A rectangle is 3/4 as wide as it is long. How

s344n2d4d5 [400]

Answer:

B. 6 inches

Step-by-step explanation:

To find how wide it is, multiply the length by 3/4

8(3/4)

= 6

The width of the rectangle in 6 inches.

So, the correct answer is B. 6 inches

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3 years ago

Scores on an exam are normally distributed with a mean of 76 and a standard deviation of 10. In a group of 230 tests, how many s

Tanzania [10]

The score of 96 is 2 standard deviations above the mean score. Using the empirical rule for a normal distribution, the probability of a score above 96 is 0.0235.
Therefore the number of students scoring above 96 is given by:
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3 years ago

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Can anyone help me with this?

Serga [27]

I don't understand ur hand writing sorry

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Step-by-step explanation:

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