Question

Pls help with these questions

Answer 1

Find x-intercept and y-intercept then you can draw the graph.

For example, the first question.

$y=-3x+2$

To find the y-intercept, x = 0

So substitute x = 0 in the equation.

$y=0+2\\y=2$

[Note]: You don't need to find the y-intercept, because from, $y=ax+b$

a is slope and b is y-intercept, you know b then you know y-intercept. For example b = 2 then y-intercept is at 2.

To find the x-intercept, y = 0

$-3x+2=0\\-3x=-2\\x=\frac{2}{3}$

Therefore, y-intercept = 2 and x-intercept = 2/3

(Try do another problems, just do the same. When you want to find the y-intercept, just look at the value of b or substitute x = 0 and When you want to find the x-intercept, just substitute y = 0 then solve for x.)