Answer:
y=3/4x+2
Step-by-step explanation:
The slope intercept formula is y=mx+b
b=2 because it is the y intercept
m is the slope
from (0,2) I counted how many points over and up the next point directly on the two lines was , which was point (4,5)
it was 4 to the right and 3 up
slope is rise over run so the slope is 3/4
Answer:
Step-by-step explanation:
Basically -1/2 is the slope meaning you go down 1 and go to the right by 2 and then the -2 is the y-intercept meaning when x=0 y=-2
Answer:
8. 
9. 
Step-by-step explanation:
^#8^
^#9^
Answer:
width = 3.5 m
length = 18 m
Step-by-step explanation:
area = length x width
x is the width then length = 2x + 11
x(2x + 11) = 63
2x^2 + 11x - 63 = 0
The formula to solve a quadratic equation of the form ax^2 + bx + c = 0 is equal to x = [-b +/-√(b^2 - 4ac)]/2a
with a = 2
b = 11
c = -63
substitute in the formula
x = [-11 +/- √(11^2 - 4(2)(-63))]2(2)
x = [-11 +/- √(121 + 504)]/4
x = [-11 +/- √625]/4
x = (-11 +/- 25)/4
x1 = (-11 + 25)/4 = 14/4 = 3.5
x2 = (-11 - 25)/4 = -36/4 = -9
since width can't be a negative number, x is 3.5
length = 2x + 11 = 2(3.5) + 11 = 18
