Answer:
The value of y is 9¼.
Explanation:
Given that the slope of the set of points (10,y) and (3,4) is 3/4.
Using the slope formula:
[tex]\text{Slope},m=\frac{Change\text{ in y-axis}}{Change\text{ in x-axis}}[/tex]We have:
[tex]\frac{3}{4}=\frac{4-y}{3-10}[/tex]We then solve for y:
[tex]\begin{gathered} \frac{3}{4}=\frac{4-y}{-7} \\ \text{Cross multiply:} \\ 4(4-y)=-21 \\ 16-4y=-21 \\ -4y=-21-16 \\ -4y=-37 \\ y=\frac{-37}{-4} \\ y=9\frac{1}{4} \end{gathered}[/tex]The value of y is 9¼.