Question

Question #2

Describe how you would graph y=-3/4 x+420 using slope-intercept method.

We place our first point on the y axis at___________

We use the slope to determine our second point.
Do we go UP or DOWN 3? (Circle ONE Choice)

Do we go LEFT or RIGHT 4? (Circle ONE Choice)

Is the slope POSITIVE or NEGATIVE? (Circle ONE Choice)

b) Write the equation in function notation. HINT! Replace the y with f(x).

f(x)=__________________________
________________________________________

Answer 1

Explanation:

We would place our first point on the y axis at 420 because we know from

y = mx + b that m is the slope and b is the y-coordinate of the y-intercept (0,b).

Because the slope m=3/4 is positive we would go up 3 and to the right 4, remember, the slope is the rise over the run, rise/run

This equation in function notation is f(x) = 3/4(x) + 420