What form of equations do we use for lines?
y = mx + b or slope intercept form.
f(x) = x2+10
Find f(4)
26
Find the y-intercept of
y = 2x +10
(0,10)
Write an equation for a vertical line through the point (-3, 3)
x = -3
f(x) = x - 4 and g(x) = 2x-5
Find f(-8) + g(-8)
-33
Find the x-intercept of
y = 2x + 10
(-5,0)
What is the slope of a line perpendicular to y = 2x+10 ?
m = -1/2
Write an equation for a line with the following slope and points.
m = 2/3 and (0, -2), (3, 0)
y = 2/3x - 2
x(f) = f+1
Find x(3)
4
Find the x-intercept of
2x + 3y = 6
Write an equation for a line with the following two points. Find the slope and y intercept. (15, -10) (5, 10)
slope = -2 y intercept = 20
y = -2x + 20
f(x) = x2+10 and g(x) = 4x-9
Find f(1) - g(2)
12
Find the x-intercept of
y=10
Undefined
The amount y(in dollars) of money you have left after playing x games at a carnival is y = -0.75x + 10. How much money do you have after playing eight games? Graph the equation and show your explanation.
y = -0.75(8) + 10 y = -6 + 10 y = 4 $4 dollars left after playing 8 games. Graph should begin at (0, 10) on the y-axis and move down three and four to the right.
g(x) = 4x-9
Find 2[g(3)]
6
Find the x-intercept of
x = 5
(5,0)