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montana53
08.11.2019 •
Mathematics
2
for question 1, find the x- and y-intercept of the line.
1. -10x+5y = 40 (1 point)
x-intercept is 5; y-intercept is -10.
x-intercept is 8; y-intercept is -4.
x-intercept is -10; y-intercept is 5.
x-intercept is -4; y-intercept is 8.
for question 2, find the x- and y-intercept of the line.
2. 5x + 4y= 80 (1 point)
x-intercept is 4; y-intercept is 5.
x-intercept is 20; y-intercept is 16.
x-intercept is 5; y-intercept is 4.
x-intercept is 16; y-intercept is 20.
write y=-x+4 in standard form using integers.
(1 point)
-x-by= 24
-x+6y= 24
ox+6y=4
6x-y= 24
4. the grocery store sells kumquats for $4.75 a pound and asian pears for $2.25 a pound. write an equation (1 point)
in standard form for the weights of kumquats k and asian pears p that a customer could buy with $22.
4.75k +2.25p = 22
4.75k = 2.25p +22
4.75 +2.25=k
4.75p +2.25k = 22
5. graph the equation. (1 point)
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Ответ:
Part 1) x-intercept is -4;y-intercept is 8
Part 2) x-intercept is 16; y-intercept is 20
Part 3)![x+6y=24](/tpl/images/0366/1381/40335.png)
Part 4)
Part a)![4.75k+2.25p=22](/tpl/images/0366/1381/994d7.png)
Part b) The graph in the attached figure
Step-by-step explanation:
Part 1) Find the x- and y-intercept of the line
we have
we know that
The x-intercept is the value of x when the value of y is equal to zero
so
For y=0
The y-intercept is the value of y when the value of x is equal to zero
so
For x=0
therefore
x-intercept is -4;y-intercept is 8
Part 2) Find the x- and y-intercept of the line
we have
we know that
The x-intercept is the value of x when the value of y is equal to zero
so
For y=0
The y-intercept is the value of y when the value of x is equal to zero
so
For x=0
therefore
x-intercept is 16; y-intercept is 20
Part 3) Write y=-(1/6)x+4 in standard form using integers.
we know that
The equation of a line in standard form is equal to
where
A is a positive integer
B and C are integers
we have
Multiply both sides by 6 to remove the fraction
Adds x both sides
Part 4) The grocery store sells kumquats for $4.75 a pound and Asian pears for $2.25 a pound.
Part a) Write an equation in standard form for the weights of kumquats k and Asian pears p that a customer could buy with $22
Part b) Graph the equation
Part a)
Let
k -----> the number of pounds of kumquats bought
p ----> the number of pounds of Asian pears bough
we know that
The number of pounds of kumquats bought (k) multiplied by it cost of $4.75 a pound plus the number of pounds of Asian pears bough (p) multiplied by it cost of $2.25 a pound must be equal to $22
so
Part b) Graph the equation
To graph the line find out the intercepts
Let
k the first coordinate of the point
p the second coordinate of the point
The k-intercept is the value of k when the value of p is equal to zero
so
For p=0
so
The k-intercept is the point (4.63,0)
The p-intercept is the value of p when the value of k is equal to zero
so
For k=0
so
The k-intercept is the point (0,9.78)
using a graphing tool
Plot the intercepts and join the points to graph the line
see the attached figure
Remember that the weight cannot be a negative number
Ответ:
sorry but l don't know
I wish some one else can help you