If my brother eats 6 1/2 cupcakes in the morning, and comes back at night for 7 1/2 MORE cupcakes, how many did he eat in total.
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The equation (in terms of x ) of the line through the points (-3,5) and (1,-7) is y = -4x - 3
The formula for calculating the equation of a line is expressed as;
y = mx + b where
- m is the slope
- b is the y-intercept
Given the coordinate points (-3,5) and (1,-7)
Get the slope
Get the y-intercept
Recall that y = mx+ b
-7 = -4(1) + b
-7 = -4 + b
b = -7 + 4
b = -3
Get the required equation:
y = -4x + (-3)
y = -4x - 3
Hence the equation (in terms of x ) of the line through the points (-3,5) and (1,-7) is y = -4x - 3
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