The equation below has one solution.
1 answer:
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Answer:
Step-by-step explanation:
In the slope- intercept form (y= mx +c), the coefficient of x is the slope of the graph.
y= 3x +4
Slope of given line= 3
The product of the slopes of perpendicular lines is -1.
Divide both sides by 3:
Cross multiply:
3(d -4)= -1(7)
Expand:
3d -12= -7
Add 12 on both sides:
3d= 12 -7
3d= 5
Divide both sides by 3:
First add the 8 to both sides, canceling out the 8 in the right and adding it to the 19 on the left, making it 27. Multiplying undoes division so, After that, multiply by three on both sides, canceling out the three on the right and multiply 27 by 3, making it 81.
