Please Help?
If you can show work so I understand how to this…
1. Graph inequality on a plane
y>x-4
i have to shade a section above or below line made
2. Graph the equation using the slope and y-intercept
y= 5/4x+2
need coordinates to plot line
3. find equation of the line that contains the given
pair of points. (-11,1), (-9,-3)
4. Find the slope and y-intercept of the line
-3x-5y=15
5. Use intercepts to graph the eqaution
-x+4y=8
6. Sarahs investment grew 24% to $310. How much did
she invest?
7. What % of 220 is 44?
8. What 25% of 780?
9. Solve for r.
q+r+i
Y= ——
6
10. -3/7 divided by (-2/3)
Favorite Answer
(2) Given y=mx+b, m is the slope and b is the y-intercept
(3) Use the two-point formula for this:
y-y1 = m (x-x1)
where m = (y2-y1)/(x2-x1)
(4) Solve for y, apply the slope-intercept form.
(5) Out of time; I hope this gets you going.
to find y intercept plug in x=0
The slope is that number mulitplied by the x IF it is in this form:
y =mx +c
hence with Q 3)
-5y = 15+3x
y = -3/5 x – 3
slope = -3/5
y-intercept = -3
———-
if you have points (x1,y1) and (x2,y2) and need to find eq. of line, plug in the x and y coordinates of each pair
y1 = m x1 + c
y2 = m x2 + c
now solve for m and c
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