Tutors Answer Your Questions about Graphs (FREE)
Question 50652: Dear Tutor,
Please help me with this problem..thanks!
Why is 2y+7x=-3 considered a line? We were asked in multiple choice form, and I figured this equation was a line by process of elimination but I would like to know why.
Thank You,
student in need
Click here to see answer by rapaljer(3620)   |
Question 50742: HEY!
I have this problem that I can not figure out!
"The coordinates of rectangle ABCD are A(0,2), B(4,8), C(7,6) and D(3,0). Show that the diagonals are equal in length." I tried to solve this by drawing it out on graph paper but I do not know how to show that the diagonals are equal in length.
Thank you if you can help,
Student in need
Click here to see answer by Nate(3495) |
Question 50740: Hello,
I was wondering how you write the equation of a line that is drawn on a graph. I think you would use y=mx+b, but I am not sure how you would plug the numbers in. The problem just shows a graph with a diagonal line and the y intercept is 0,2. The x intercept is 2,0. I know this question may sound confusing because I can't draw the graph but if you could help that would be great!
Thanks
Click here to see answer by stanbon(26268) |
Question 50755: Determine whether the relation is a function. If it is a function, state its domain and range.
{(–2, 3), (0, 10), (1, 3), (4, 8)}
a. Domain: {3, 10, 8}; Range: {–2, 0, 1, 4}
b. Domain: {–2, 0, 1, 4}; Range: {3, 10, 8}
c. Domain: {–2, 0, 1, 4}; Range: 7
d. The relation is not a function.
Click here to see answer by stanbon(26268) |
Question 50756: Determine whether the set T= {( –2, –8), (–1, –1), (0, 0), (–1, 1), (–2, 8)} defines a function. If it does, then state the domain and range.
a. T does not define a function.
b. T defines a function with domain { –2, –1, 0} and range { –8, –1, 0, 1, 8}.
c. T defines a function with domain { –8, –1, 0, 1, 8} and range { –2, –1, 0}.
d. T defines a function with domain {( –2, –8), (–1, –1), (0, 0), (–1, 1), (–2, 8)} and range { –2, –1, 0}.
Click here to see answer by stanbon(26268) |
Question 50819: How does replacing f(x) by f(x) + 4 in y = f(x) affect the graph of y = f(x) ?
a. The graph is shifted four units upward.
b. The graph is shifted four units downward.
c. The graph is shifted four units to the right.
d. The graph is shifted four units to the left.
e. The graph is expanded vertically.
f. The graph is contracted vertically.
g. none of these describes the transfromation given.
Click here to see answer by stanbon(26268) |
Question 50963: Determine whether the set T= {( –2, –8), (–1, –1), (0, 0), (–1, 1), (–2, 8)} defines a function. If it does, then state the domain and range.
a. T does not define a function.
b. T defines a function with domain { –2, –1, 0} and range { –8, –1, 0, 1, 8}.
c. T defines a function with domain { –8, –1, 0, 1, 8} and range { –2, –1, 0}.
d. T defines a function with domain {( –2, –8), (–1, –1), (0, 0), (–1, 1), (–2, 8)} and range { –2, –1, 0}.
Click here to see answer by stanbon(26268) |
Question 51186: Determine whether the relation is a function. If it is a function, state its domain and range.
{(–8, 7), (–5, –4), (–3, 3), (–3, 6)}
a. Domain: {7, –4, 3, 6}; Range: {–8, –5, –3}
b. Domain: {–8, –5, –3}; Range: {7, –4,3, 6}
c. Domain: {–8, –5, –3}; Range: 11
d. The relation is not a function.
Click here to see answer by rapaljer(3620) |
Question 51291: I am having problems with this question. an explanation would be awesome. i think i'm just havin problems with the fraction part.
Find the equation of the line, in standard form, with a slope of 1/4 passing through the point (9,2)
Click here to see answer by THANApHD(104)  |
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