# math11Plelase check

posted by .

Hi I need to write these systems of equalities in slope intercept form so I can graph them. 20x+4.5y<=60 and 12x+20y<=60.
y=4 4/9x+ 13 1/3 (I think this is wrong)
y=-3/5x+3

• math11Plelase check -

Does your teacher insist that you have the relations in slope y-intercept form?

I will show you an easy way to sketch a graph if they are written in the form
ax + by = c

e.g. your 12x + 20y ≤ 60 or the boundary 12x + 20y = 60

put your pinkie finger over the x term (you let x=0)
what you see is 20y = 60
so in your head , y = 3 ---> the point (0,3), the x-intercept

now put your pinkie finger over the y term (you let y = 0)
what you see is 12x=60
so in your head , x = 5 ---> the point (5,0)

so now you have 2 simple points to graph your boundary.

do the same thing for the first one,
you might want to use your calculator for
4.5y = 60
y = 13 1/3

btw, your equations in the slope y-intercept form should have been
y ≤ - (4 4/9)x + 13 1/3
last one is right

## Similar Questions

1. ### MATH

Please help me!!!!!!!!!!!!!!!1 Instructions a. If needed, rewrite the following equations in slope-intercept form. * b. Indicate the slope and the y-intercept for each of the equations. c. Using graph paper and a straight edge, graph …

decide whether the given ordered pair is a solution of the equation: 1. 3y+12x=-4; (1/5, -35/15): 2. 8-3x+24y=0; (5, 23/24) I think neither of them are. _______ find the x-intercept of the graph of the equation. 3. 13x-24y=-5 --> …

in questions 1 and 2, write an equation of the line in slope-intercept form. 1. the slope is -4/3; the y-intercept is -2. 2. the slope is 0; the y-intercept is -5. my answers: 1.y=-4/3-2 2. y=-5 ______________________ write an equation …
4. ### math

i have more than one question so if u no any of the answers please tell me 1.) write the point-slope form of the equation of the line with slope -2 passing through the point ( -5, -9). 2.) write the point-slope form of an equation …

I would greatly appreciate it if someone would please be kind enough to take the time and show me how to work these problems. Thank you very much Solve by finding y and graph using the slope and y-intercept: 3x-y=1(My answer -y=3x+1)which …

what is an equation of the line in slope intercept form?
7. ### Algebra

I have an assignment that asks me to write an equation in slope-intercept, point-slope, or standard form for the information given and to explain why the chosen form would be best. Below is the information given. 1. passing through …
8. ### math - pls check!!!

Write an equation in point-slope form for the line that passes through one of the following pairs of points (you may choose the pair you want to work with). Then, use the same set of points to write the equation in standard form and …
9. ### Algebra 2

Can someone help me with this equation please?
10. ### Math

1. Use point-slope form to write the equation of a line that has a slope of 2/3 and passed through (-3,-1). Write your final equation in slope-intercept form. Is the answer y=2/3+-1 2. Write an equation of the line that passed through …

More Similar Questions