Explanation:
The given expression is:
12x + 8y = 28
Problem;
Express in slope-intercept format;
Solution:
The equation of a straight line is given as;
y = mx + c
where y is the y-coordinate
m is the slope
x is the x-coordinate
c is the intercept
To solve this problem simply express the given equation as that of a straight line.
12x + 8y = 28 in the form y = mx + c
12x + 8y = 28
take 12x to the other side;
8y = 28 - 12x
divide by 8 to isolate the y;
![(8y)/(8) = (28)/(8) - (12x)/(8)](https://img.qammunity.org/2021/formulas/mathematics/college/pk5vb9xay2i8x14sedcw0y06bup02xusbc.png)
y =
![(7)/(2) - (3x)/(2)](https://img.qammunity.org/2021/formulas/mathematics/college/l9pj2bdwlmya1x71f7242lcuuji1q9q371.png)
Re-arranging gives;
y =
![(-3x)/(2) + (7)/(2)](https://img.qammunity.org/2021/formulas/mathematics/college/qfkgysjxnixgo1f9ftxad5vhdhmdnyesqj.png)
This is the slope-intercept form.