Using Intercepts Find intercepts from graphs equations and

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Using Intercepts Find intercepts from graphs, equations, and tables.

Using Intercepts Find intercepts from graphs, equations, and tables.

Using Intercepts The y-intercept is the ycoordinate of the point where the graph intersects

Using Intercepts The y-intercept is the ycoordinate of the point where the graph intersects the y-axis. __________________ The x-intercept is the xcoordinate of the point where the graph intersects the x-axis. ___________________

Find the x and y intercept:

Find the x and y intercept:

What if there is no graph? 5 x – 2 y = 10 To

What if there is no graph? 5 x – 2 y = 10 To find the x-intercept, plug 0 in for y and solve for x. To find the y-intercept, plug 0 in for x and solve for y.

What if there is no graph? -3 x + 5 y = 30 To

What if there is no graph? -3 x + 5 y = 30 To find the x-intercept, plug 0 in for y and solve for x. To find the y-intercept, plug 0 in for x and solve for y.

What if there is no graph? 2 y = -4 x + 16 To

What if there is no graph? 2 y = -4 x + 16 To find the x-intercept, plug 0 in for y and solve for x. To find the y-intercept, plug 0 in for x and solve for y.

Application Problem: Trish can run the 200 m dash in 25 s. The function

Application Problem: Trish can run the 200 m dash in 25 s. The function f(x) = 200 – 8 x gives the distance remaining to be run after x seconds. Graph this function and find the intercepts. What does each intercept represent? x 0 5 F(x) x-intercept: _______ y-intercept: _______ 10 15 20 25 30

Application Problem: The school sells pens for $2. 00 and notebooks for $3. 00.

Application Problem: The school sells pens for $2. 00 and notebooks for $3. 00. The equation 2 x + 3 y = 60 describes the number of pens x and notebooks y that you can buy for $60. What are the intercepts and what do they mean? It is in standard form, plug in 0 to solve for x and y independently x 2 x + 3 y = 60 x-intercept: _______ y-intercept: _______ 0 0

Use the intercepts to graph: 3 x – 7 y = 21 To find

Use the intercepts to graph: 3 x – 7 y = 21 To find the x-intercept, plug 0 in for y and solve for x. To find the y-intercept, plug 0 in for x and solve for y.

Use the intercepts to graph: y=-x+4 To find the x-intercept, plug 0 in for

Use the intercepts to graph: y=-x+4 To find the x-intercept, plug 0 in for y and solve for x. To find the y-intercept, plug 0 in for x and solve for y.

Use the intercepts to graph: -3 x + 4 y = - 12 To

Use the intercepts to graph: -3 x + 4 y = - 12 To find the x-intercept, plug 0 in for y and solve for x. To find the y-intercept, plug 0 in for x and solve for y.

Use the intercepts to graph: To find the x-intercept, plug 0 in for y

Use the intercepts to graph: To find the x-intercept, plug 0 in for y and solve for x. To find the y-intercept, plug 0 in for x and solve for y.