Answer:
[tex]y=5x+4[/tex]
Step-by-step explanation:
We know that we'll have to manipulate the equation [tex]y=mx+b[/tex], so we can start there.
[tex]m[/tex] stands for the gradient of the function (or slope) and [tex]b[/tex] stands for the y-intercept of the function (the y value where the line touches the vertical line (y axis)).
Since we know that [tex]m[/tex] stands for the slope and that the slope in this problem is 5, we can plug it into the original equation and we'll get
[tex]y=5x+b[/tex]
We also know that this line passes through the point (4,24). This means that it passes through the point where x = 4 and y = 24. If we plug in these values into the equation that we made above, we can solve for b.
[tex]24 = 5\cdot 4 + b\\24 - 20 = b \\b = 4[/tex]
Now that we know what b is, we can plug it into [tex]y=5x+b[/tex] and we'll get
[tex]y=5x+4[/tex]
Good luck!