Question

find the equation of the line useing the following info show all your work

(-3,-4).m=3

Answer 1

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Answer 2

gradient or slope is 3 and the line goes through the point (-3,-4). Use the formula y-y1 = m(x-x1)

Answer 3

-3 is x-value and -4 is y-value. m=3 which is the slope. the slope-intercept form is y=mx + b.

-4=3(-3) + b.
-4= -9 + b
+9 +9
b= 5 Equation: y= 3x + 5

Answer 4

Ok It is a line so has an equation y = mx + c (m is the gradient c is the constant at which the line passes through the y axis on its graph)
So we now use the coordinates for our x and y values along with the gradient.
-4 = 3(-3) + c
therefore -4 = -9 + c
Adding 9 to both sides we get 5 = c
So the equation of the line is y = 3x +5

Answer 5

thanks