C. 2x +5y = -15
You want the form ax +by = c. To get that form, you need to put the x-term on the left (making sure its sign is positive) and the constant on the right.
Multiply by 5:
5y +35 = -2(x -10)
5y +35 = -2x +20
2x + 5y = -15 . . . . . . corresponds to selection C
Be careful of dashes when writing answers. They can be confused with minus signs.
-5,1 and 2,1
2x + 5y = -15 is the standard form of equation
The point slope form of the equation of the line that passes through (-5, -1) and (10, -7) is given by:
We have to write the standard form of the equation
The standard form of an equation is Ax + By = C
In this kind of equation, x and y are variables and A, B, and C are integers
Let us convert the given equation into standard form
Thus the standard form of equation is found
First, let's find the slope of the line segment that passes through the given poins (-5,1) and (2,1). (Note: Please use parentheses here.
m = = 0. The slope of this segment is zero; the segment is horiz.
The desired line is therefore horiz. It passes thru (-5,1) and (2,1). Note that the y-coordinates are both 1. Thus, the equation of this horiz. line is y = 1.