Oct 07, 1:28:22 PM

Mathematics

1 answer:

Alenkasestr [34]2 years ago

7 0

Answer:

y=3/4x+7

Step-by-step explanation:

You want to find the equation for a line that passes through the point (-4,4) and has a slope of 3/4. 

First of all, remember what the equation of a line is: 

 

y = mx+b 

Where: 

m is the slope, and 

b is the y-intercept 

To start, you know what m is; it's just the slope, which you said was 3/4. So you can right away fill in the equation for a line somewhat to read: 

y=3/4x+b. 

Now, what about b, the y-intercept? 

 

To find b, think about what your (x,y) point means: 

(-4,4). When x of the line is -4, y of the line must be 4. 

Because you said the line passes through this point, right? 

Now, look at our line's equation so far: . b is what we want, the 3/4 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (-4,4).

 

So, why not plug in for x the number -4 and for y the number 4? This will allow us to solve for b for the particular line that passes through the point you gave!. 

 

(-4,4). y=mx+b or 4=3/4 × -4+b, or solving for b: b=4-(3/4)(-4). b=7.

hope this answers your question sorry it's soo long i just like writing long stuff have a great day!!

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