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Find the missing coefficient in the equation of the line shown. Write the completed equation. Ax-2y=-6

User Warmanp
by
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1 Answer

2 votes

The missing coefficient
\(a\) is option D. 4

How did we get the value?

To find the missing coefficient (a) in the equation
\(ax - 2y = -6\), we can substitute the given point
\((-4, -5)\) into the equation and solve for
\(a\).

Replace
\(x\) with
\(-4\) and
\(y\) with
\(-5\):


\[ a(-4) - 2(-5) = -6 \]

Simplify the expression:


\[ -4a + 10 = -6 \]

Subtract 10 from both sides:


\[ -4a = -16 \]

Divide by -4 to solve for
\(a\):


\[ a = (-16)/(-4) \\= 4 \]

So, the missing coefficient
\(a\) is 4. Therefore, the correct answer is (d) 4.

Complete question:

Find the missing coefficient in the equation of the line shown: ax - 2y = -6, given the point (-4, -5).

a) 6

b) -6

c) -4

d) 4

User Jeff Lamb
by
7.1k points