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What is the slope of the line?

-4x + 7 = 2y - 3

Choose one answer:
A. -3
B. -1/3
C. -2
D. -1/2


Sagot :

Let's find the slope of the line given by the equation:

[tex]\[ -4x + 7 = 2y - 3 \][/tex]

To determine the slope, we need to express the equation in the slope-intercept form, which is [tex]\( y = mx + b \)[/tex], where [tex]\( m \)[/tex] represents the slope and [tex]\( b \)[/tex] represents the y-intercept.

Step 1: Move all y terms to one side and all constant terms to the other side.
Starting with the equation:

[tex]\[ -4x + 7 = 2y - 3 \][/tex]

Add 3 to both sides to isolate the terms containing [tex]\( y \)[/tex]:

[tex]\[ -4x + 7 + 3 = 2y \][/tex]

Simplify the left-hand side:

[tex]\[ -4x + 10 = 2y \][/tex]

Step 2: Solve for y by isolating it on one side.
To isolate [tex]\( y \)[/tex], divide both sides of the equation by 2:

[tex]\[ -\frac{4x}{2} + \frac{10}{2} = y \][/tex]

Simplify the equation:

[tex]\[ -2x + 5 = y \][/tex]

Now, the equation is in the form [tex]\( y = mx + b \)[/tex], where [tex]\( m \)[/tex] is the slope.

From the equation [tex]\( y = -2x + 5 \)[/tex], we can see that the slope ([tex]\( m \)[/tex]) of the line is [tex]\( -2 \)[/tex].

Therefore, the slope of the line is:
[tex]\[ \boxed{-2} \][/tex]

The correct answer is (C) -2.