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tensa zangetsu [6.8K]
3 years ago
10

Is this correct ? .......................

Mathematics
1 answer:
ladessa [460]3 years ago
5 0
To find the midpoint of the two points (x₁ ,y₁) and (x₂, y₂) we need to use the formula:

\sf{Midpoint=(\frac{x_1 + x_2}{2}, \frac{y_1+y_2}{2})}

So to find the midpoint of E (a,a) and F (3a, a), let's plug it in to the formula:

\sf{Midpoint=(\frac{a + 3a}{2}, \frac{a+a}{2})}

Simplify the numerator:

\sf{Midpoint=(\frac{4a}{2}, \frac{2a}{2})}

Simplifying the fractions more:

\sf{Midpoint=(2a, a)}


So the midpoint of EF is (2a,a).

Your answer of (a,a) would be wrong.
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The two lines y= 6x+15 and y= mx+4 intersect at x= -2. What is the y-coordinate of their intersection point
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The y-coordinate of their intersection point is 3

That is y=3

Step-by-step explanation:

Given two lines are y=6x+15 and y=mx+4

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Equating the two lines

6x+15=mx+4

6x+15-mx-4=0

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(6-m)(-2)+11=0

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