Question

Find the x- and y-intercepts of the graph of -8x + y = 21. State each answer as an integer or

an improper fraction in simplest form.
Answer
x-intercept:
y-intercept:
B

Answer 1

x-intercept: −21/8, y-intercept: 21

To find the x-intercept of the graph represented by the equation -8x + y = 21, we set y to zero and solve for x. Setting y to zero, we get:

-8x + 0 = 21

Solving for x, we find:

x = -21/8

So, the x-intercept is at the point (-21/8, 0).

To find the y-intercept, we set x to zero and solve for y. Setting x to zero, we get:

-8(0) + y = 21

Solving for y, we find:

y = 21

So, the y-intercept is at the point (0, 21).