What is the equation of the line 6x+8y=-10 in slope intercept form
1 answer:
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Answer:
Given: , y =6
To prove: x =7
On substituting the value of y =6 in the equation 7y = 8x -14 to solve for x.
or
42 = 8x -14 ......[1]
Addition Property of equality states that you add the same number to both sides of an equation.
Add 14 to both sides in equation [1];
42+14 =8x -14+14
Simplify:
56 = 8x
or
8x =56 ......[2]
Division Property of equality states that you divide the same number to both sides of an equation.
Divide by 8 to both sides of an equation [2];
Simplify:
x =7 Hence proved!
A two Column proof:
Statement Reason
1. 7y = 8x -14 Given
y= 6
2. 7(6) = 8x -14 Substitution property
3. 42+14 = 8x Addition property of equality
4. 56 =8x Simplify
5. x =7 Division Property of equality
Answers:
1. Switch sides
2. Subtract by 8 from both sides of equation.
3. Simplify.
4. Multiply by -1 from both sides of equation. (it's should be the reverse inequality).
5. Simplify.
6. Then you had to divide by 9 from both sides of equation.
7. Simplify.
8. Divide by the numbers.
9. Divide by the numbers.
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