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Inessa05 [86]
1 year ago
15

write an equation in slope intercept form of the line with the given characteristics: a) passes through (-3,0) and (-5,-3)

Mathematics
1 answer:
sweet [91]1 year ago
3 0

The equation of the line in slope-intercept form is \bf{y=  \frac{3}{2} x +  \frac{9}{4}}.

<h3>What is slope-intercept form?</h3>
  • y=mx +c, where m is the slope and c is the y-intercept

<h3>Steps</h3>
  1. Find the slope
  2. Substitute value of the slope into the equation
  3. Substitute a pair of coordinates
  4. Solve for c
  5. Rewrite equation with value of m and c

<h3>Working</h3>

The first step is to calculate the slope of the line.

\boxed{ slope = \frac{y _{1} - y_2 }{x_1 - x_2} }

Slope

=  \frac{ - 3 - 0}{ - 5 -(  - 3)}

=  \frac{ - 3}{ - 5 + 3}

=  \frac{ - 3}{ - 2}

=  \frac{3}{2}

Substitute the value of m into y= mx +c:

y =  \frac{3}{2} x + c

Next, substitute a pair of coordinates that the line passes through. Here, I will substitute (-3, 0) into the equation.

When x= -3, y= 0,

0 =  \frac{3}{2} ( - 3) + c

Find the value of c:

0 =  -  \frac{9}{2}  + c

c =  \frac{9}{2}

Substitute the value of c into the equation:

Thus, the equation of the line is y =  \frac{3}{2} x +  \frac{9}{2}.

To learn more about slope-intercept form, check out: brainly.com/question/24436844.

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