Question

write an equation of the line that passes through the given points (7,9),m =4

Answer 1

Answer:

$y = 4x - 19$

You should also try solving it yourself to make sure I did not make any mistake.

Step-by-step explanation:

We already know the slope so, so far the equation should look like this.

$y = 4x + b$

Now we just need to insert the point into the equation. So point (7,9) 7 should replace the x and 9 will replace the y. It will look like this:

$9 = 4 \times 7 + b$

when you solve this equation you'll get b

$b = - 19$

So the equation is

$y = 4x - 19$