Write the Equation
Slope from 2 points
Review
Which point belongs?
Random
100
slope = -2
Y intercept = 4
y = -2x+4
100
(1,3) (2,4)
What is 2 or 2/1?
100
90 is 50% of what number?
What is 180?
100
Y = x + 1
A) (3, -2) B) (4, 5 ) C) (-6, -7)
B) (4, 5 )
100
Is the slope positive or negative?
NEGATIVE
200
-y +2x = -6
Y = 2x +6
200
(7,1) (5,2)
What is -1/2?
200
Solve 2 (x-4) = 12
What is x= 10?
200
Y = 2x - 3
A) (5, 7) B) (4, 11) C) (0, 5)
A) (5,7)
200
Function or no function?
{(-3, -3) (0, 1) (3, 4) (2, 4)}
What is a function?
300
-2y -5x = -10
y = -5/2x +5
300
(-3, 6) (-8, 7)
What is -1/5?
300
Michelle read 240 pages in 6 hours. At this rate, how long will it take her to read 400 pages?
What is 10 hours?
300
Y = -2x + 2
A) (4, 4) B) (-3, 8 ) C) (1, 6)
B (-3, 8)
300
Y = 6x2 - 8
If the x value is -5, what is the y value?
142
400
-2x + 4y -8 = 0
What is y = 1/2x +2
400
(-3,-4) (-1,6)
What is 5?
400
Solve -5y +20 = y - 4
what is y = 4?
400
Y= 6x - 3
A) (1, 9) B) (-2, -3 ) C) (0, -3)
C) (0, -3)
400
Y = 2x2 + 4x -12
If the x value is -3, what is the y value?
what is -6?
500
-3x + 5y -15 = 0
What is y = 3/5x +3
500
(0,-3) and (-2,0)
x-intercept?
y-intercept?
x-intercept is -2
y-intercept is -3
500
What is the 8.25 % tax on a $45 item?
What is $3.71?
500
Y = -x + 4
A) (5, -1) B) (6, 12 ) C) (1, -7)
A.) (5, -1)
500
Simplify -4(3y -12) + 2 (-y+9)
What is -14y +66?