The problem
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what is the linear equation of a line with a slope of 3 that goes through the point -4,-3. Not sure how to put in a usable equation to get the right answer. what should I do?
Answer provided by our tutors
The slope intercept equation of a line is:
y = mx + b
The slope is given in the text for the problem:
m = 3
This means that the equation is:
y = 3x + b
Next, we need to find 'b' using the fact that the line goes through the point (-4, -3).
This means that when 'x = -4' then 'y = -3'. We plug these values to find 'b':
-3 = 3*(-4) + b
........
Click here to see the step by step solution for 'b'
........
b = 9
The equation of the line is:
y = 3x + 9