Twice the sum of a number and negative nine
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
Determine the length of AB
Because A'B'C'D is a dilation of ABCD, then the following relationship must exist:
Substitute values for A'B', B'C' and BC
Express the ratio as fractions:
Multiply through by 14
First, let's find the slope of the line using the slope formula, which is:
((,
) and (
,
) are points on the line)
In context of this problem, we can use the formula to find the slope of the line between the two points:
Now, we can use the slope in the point-slope formula, which will help us find the final equation of the line. (For reference, the point-slope formula is where (
,
) is a point on the line)
In the context of the problem, we could use the formula to find the equation of the line:
The equation of the line is y = -x + 5.