Question

Which of the following points is a solution to y ≤ −2x + 3?
(0, 4)
(1, 0)
(3, −2)
(5, −2)

Answer 1

Since b=-3 this tells us that the y-intercept is(0,-3) .Remember the y-intercept is the point where the graph intersects with the y-axis

So we have one point (0,-3)

Answer 2

this will help

http://www.algebra.com/algebra/homework/Linear-equations.faq.question.382098.html

Answer 3

try the points to see which one is true

Answer 4

\[y+2x \le 3\]
try the points which satisfy it.