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faltersainse [42]
3 years ago
14

Given the points (4,-2) and (8,1), what is the equation of a line that connect the two points. Answer in slope-intercept form.

Mathematics
1 answer:
monitta3 years ago
4 0

The equation of required line in slope-intercept form is:

y=\frac{3}{4}x-5

Step-by-step explanation:

We are given the points (4,-2) and (8,1) we need to find the equation of a line that connect the two points. We need to find equation of line in slope-intercept form.

The standard equation of slope-intercept form is:

y=mx+b

m is slope and b is y-intercept

  • Finding slope:

Using formula: Slope=\frac{y_2-y_1}{x_2-x_1}

Putting values:

x_1=4, y_1=-2, x_2=8 and y_2=1

Slope=\frac{y_2-y_1}{x_2-x_1}

Slope=\frac{1-(-2)}{8-4}

Slope=\frac{1+2}{4}

Slope=\frac{3}{4}

So slope is: Slope=\frac{3}{4}

  • Now finding y-intercept:

Using point (4,-2) and slope Slope=\frac{3}{4}

y=mx+b\\-2=\frac{3}{4}(4)+b\\-2=3+b\\b=-2-3\\b=-5

So, value of y-intercept is -5

The equation of required line is:

y=mx+b\\y=\frac{3}{4}x-5

So, the equation of required line in slope-intercept form is:

y=\frac{3}{4}x-5

Keywords: Equation of line using Slope  

Learn more about Equation of line using Slope at:

  • brainly.com/question/9369548
  • brainly.com/question/4932386
  • brainly.com/question/4097107
  • brainly.com/question/1979240

#learnwithBrainly

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