Answer is graph C.
Step by step.
First I change the equation to y-intercept form.
y= -4x + 7.
With this we know our slope is -4/1, remember slope is y/x, so it’s points are (1, -4) from the y intercept of 7.
If you start at 7, go -4 down the y axis and right +1 on the x axis, you will find the points are on the line in graph C.
We also know since slope is a negative, our graph will be a negative slope.