Problem 1: Plug in the given value into the function and evaluate.
[tex]f(x)=|3x|\\f(2)=|3(2)|\\f(2)=|6|\\f(2)=6[/tex]
Problem 2: Solve the equation for y.
[tex]-7x+2y=8[/tex]
add 7x to both sides to move it to the right side of the equation.
[tex]2y=7x+8[/tex]
Divide both sides of the equation by 2 to get a single y variable on the left hand side.
[tex]\frac{2y}{2} =\frac{7x}{2} +\frac{8}{2} \\y=\frac{7}{2}x+4[/tex]
Simplify the terms to get the the equation into slope-intercept form.
The slope of the line is [tex]\frac{7}{2}[/tex]
I'm a unsure what Problem 3 is asking for sorry I hope the rest is helpful.
