Select the three lines that have the same gradient:
$y=7x$y=7x
$y=7x-4$y=7x−4
$y=\frac{x}{7}+4$y=x7+4
$y=6-7x$y=6−7x
$y=6x+7$y=6x+7
$y=4+7x$y=4+7x
Consider the line graph shown below:
Which line does not have a $y$y-intercept?
Find the equation of a line that has: