Reading Graphs
Is my slope positive or negative? How do you know?
Negative
Solve for x.
18 - x = 8
10
What is the slope?
y = -x + 3
-1
f(x) = 4x + 2.
Find f(0).
2
Domain and Range refer to which axis' and values?
Domain is x-axis and x-values
Range is y-axis and y-values
Identify the x- and y-intercepts
x-intercept (-4, 0)
y-intercept (0, 2)
Solve for x.
2(x + 5) = -2
-6
What is the slope?
2x - y = 1
2
f(x) = -2x + 2.
Find f(-3).
8
Find a zero of a function means?
x - intercept, where it crosses our x-axis
Identify the zero of the function
(3, 0)
Solve for x.
-6 + 4x = -18
-3
Calculate the slope. (Use formula)
(1, -19)(-2, -7)
-4
f(x) = -3 - x.
Find f(-7).
4
If a line is straight up and down it's slope is what?
Undefined
What is the slope of the line?
2/3
Solve for x.
8x - 2 = -9 + 7x
-7
Calculate the slope. (Use formula)
(19, 3)(20, 3)
0
f(x) = 2(x - 3).
Find f(6).
6
What is Slope Intercept Form?
y = mx + b
Write an equation for the line shown
1/2x + 4
Solve for x.
3x - 5 = -8(6 + 5x)
-1
y = -1
0
f(x) = 3(4 - x) + 2.
Find f(-2).
20
What do m and b stand for in an equation?
m is slope
b is y-intercept