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2 years ago

Which graph is the line y=-2/5x+3?

Mathematics

2 answers:

Mashcka [7]2 years ago

8 0

1st we should find the point where the line intersects with the axises
put x= 0 , so y= 3 ---- > the 1st point (0,3)
put y=0 , so x = 7.5 ----> the 2nd point (7.5,0)
so it's the first graph on the left

ehidna [41]2 years ago

3 0

We can start off by using process of elimination. There are only 2 graphs (the first one and last on as appeared on my screen) that can be correct since the others do not have a y-intercept of 3. Then, we can go to the next step which is determining the slope of the remaining lines. The first graph has a slope of -2/5 while the last one has a slope of 5/2. As a result, the first graph, or the graph that has the line with smallest slope showing in quadrant 1 and 2, is the graph of the line y=-2/5x+3.

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I don't understand how to solve this please help and if you can please show work, thank you

Korvikt [17]

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3 years ago

Write the equation of a line that meets all the following requirements:

LuckyWell [14K]

9514 1404 393

Answer:

x + y = 5
y = -x + 5

Step-by-step explanation:

We can start with the point-slope form of the equation for a line. To meet the given requirements, we can use a point of (5, 0) and a slope of -1. Then the equation in that form is ...

y -0 = -1(x -5)

Simplifying gives the slope-intercept form:

y = -x +5 . . . . . . . use the distributive property to eliminate parentheses

Adding x to both sides gives the standard form:

x + y = 5

<em>Explanation</em>

We know the line has the required intercept and slope because we chose those values to put into the point-slope form. Conversion from one form to another made use of the rules of equality, the additive identity element (y-0=y), and the distributive property.

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2 years ago

Mr. Brown shares with the class that 70% of the students got an A on the English vocabulary quiz. If Mr. Brown has 100 students,

mezya [45]

Answer:

a. $\frac{70}{100}$

b. 0.7

c. 0.7=70%= $\frac{70}{100}$

Step-by-step explanation:

70% of 100 received an A, that is 70/100 times 100 equal to 70

$\frac{70}{100}*100=70$

a. 70% = $\frac{70}{100}$

b. $\frac{70}{100}$ = 0.7

Notice that 70/100 is equal to 7/10 which is 0.7

c. 0.7=70%= $\frac{70}{100}$

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3 years ago

A single card is selected from a deck. find the probability that it is a queen or a black card.

s2008m [1.1K]

52 cards in a deck. 4 of those are queens. 52/2=26 (total # of black cards), 2 red queens. Total + of cards you could possibly draw as the favored car = 28 out of 52...,

This is where i lose the probability. It's greater than 50%. I hope this helps.

8 0

3 years ago

Find -48a divided by 8 when a=1 write your answer in simplest form

lukranit [14]

-48a÷ 8 can be written as,

$\frac{-48a}{8}$

Put a=1 in the above exprression and solve.

$\frac{-48\times1}{8}=-6$

Therefore, the solution is -6.

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1 year ago