(2,?) is on the line y=3/7x+5 find the other half of the coordinate

Mathematics

2 answers:

yulyashka [42]3 years ago

6 0

Y=3/7(2)+5
y= 6/7+5
y= 6/7+ 35/7
y= 41/7

pishuonlain [190]3 years ago

4 0

Answer:

The coordinate of (2,y) is 5.85 such that the given point lies on line $y=\frac{3}{7}x+5$ .

Step-by-step explanation:

Given : Equation of line $y=\frac{3}{7}x+5$

We have to find the value of y coordinate of point (2,y) such that the given point lies on line $y=\frac{3}{7}x+5$ .

Since, the point lies on the line $y=\frac{3}{7}x+5$

So (2,y) satisfies the equation of line $y=\frac{3}{7}x+5$

Put x = 2 and y = y, we have,

$y=\frac{3}{7}(2)+5$

$y=\frac{6}{7}+5$

Take LCM, we have

LCM (7,1) = 7

$y=\frac{6+35}{7}$

⇒ $y=\frac{41}{7}=5.85$

Thus, The coordinate of (2,y) is 5.85 such that the given point lies on line $y=\frac{3}{7}x+5$ .

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How are y-intercepts of y=(1/3)^x and y=5(1/3)^x different?

loris [4]

Remark.
The easiest way to do this question is to graph it. Start with that.
The red line is y = (1/3)^x
The blue line is y = 5*(1/3)^x

Comment
The red line's y intercept is (0,1)
The blue line's y intercept is (0,5)

Why
If the x value is 0 then (1/3)^0 = 1
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y = 5*(1/3)^0 = 5*1 = 5

In other words, in this set of equations, the 5 makes the y intercept 5 times larger than the 1 in front of y = (1/3)^x

If you have choices, could you please list them? I may be giving you the right answer but not in the form required.