Question

Please help me I don’t understand this

Answer 1

When you're given a point and the slope of a line, it is often easiest to write its equation in point-slope form.

This is $y-y_1=m(x-x_1)$, where $(x_1,y_1)$ is the ordered pair for the point you are given and m is the slope.

Here, you would write $y-8=-3(x-7)$. Then, you simplify to get to slope-intercept form, which is $y = mx+b$, where b is the y-intercept.

$y-8=-3(x-7) \\ y=-3x+29$

The correct answer is A.